What you can do is trying to aquire an exclusive share on the file, if you success it means that the file is not used by any other process. Will see if it works in production tomorrow. What is the yield keyword used for in C#? Try to add the FileShare option, see if that helps: FileStream fs = new FileStream (filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); EDIT: corrected code, not FileShare.Read but FileShare.ReadWrite does the trick (as Guillaume showed as well). Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? We can use a different signature for opening the filestream with read/write access to other processes: The FileShare option determines how other processes can access the same file when this process opens the same file. Sign in Another process is using the TCP port (80) or the SSL port (443) required by the IIS. But just to make sure, press. stamper.Close(); Its important how different methods are being used in the code. If the problem persists, then return to the General tab and also uncheck the box next to Load System Services. 3) If there is no exception you can move the file. We will discuss solutions to this error in two different sections, as it affects both Windows Update and the Photos app. to your account, In a .NET Core (actually ASP.NET Core) project I am trying to read log files. Sunday, July 5, 2020 9:43 PM Answers 0 Sign in to vote User-1350042179 posted This post says that the code: file.create creates as filestream which is always open.. Because your stream is blocking access to the file, File.AppendAllText will fail, throwing the exception you see. Close the elevated Command Prompt as we wont need admin privileges for the next steps. For example, given a jpeg image file, the. Why are non-Western countries siding with China in the UN? How to choose voltage value of capacitors. Maybe, but it still doesn't explain why it works once, and then fails. Regards Wednesday, July 12, 2006 10:49 AM 1 Sign in to vote All personal data you provide to us is handled in accordance with applicable laws, including the European GDPR. Quickest way to read contents from xml file. I first tried SetFileHandleAsInvalid() then retried. Because your stream is blocking access to the file, File.AppendAllText will fail, throwing the exception you see. Because it is being used by another process. If this method didnt resolve the conflict or wasnt applicable to the situation that youre encountering, move down to the final method. Copying the log file is not a solution due to the size of the log and performance of my application. img.Save(tmpfl, System.Drawing.Imaging.ImageFormat.Jpeg), End Using "using" is an assurance that Dispose() will be called to free resources. Based on the official Microsoft documentation, the error message will appear if one of the following conditions are applicable to your current situation: To resolve this issue, well need to deploy the Netstat.exe utility in order to determine if another process is using the ports specified above. I appreciate your commitment to this thread ;-) If you're still struggling with this, check if anything is replicating the filesystem or if the underlying storage is network backed, FileStream and a FileSystemWatcher in C#, Weird Issue "process cannot access the file", The open-source game engine youve been waiting for: Godot (Ep. Restart your PC to activate your new settings and put your Windows OS in a Clean Boot State. Do you have any better solutions or suggestions? Opening an elevated Command Prompt window When prompted by the UAC (User Account Control), click Yes to grant admin privileges. Async Main in C#: From C# 7.1, the Main() method which is the entry point of the application can be declared as async. FileStream - The Process Cannot Access The File Hello Guest, Why not Register today? The cookie is used to store the user consent for the cookies in the category "Analytics". Try disabling any antivirus/anti-malware software. This is a normal feature and, in most cases, is nothing to worry about. How to Fix The Process Cannot Access the File Because It Is Being Used by Another Process, How to Fix Hard Drive Is Not Showing Up, Fixed: This Video File Cannot Be Played Error Code 224003. How can I do the same in C#, meaning checking if the file is open and alert which application holds it. ISSUE: "System.IO.IO.Exception: Process cannot access the file b/c it is being used by another process." Since I am monitoring a folder using SystemFileWatcher the process won't let me open the recently added file for the file is still be monitored/used by the FileSystemWatcher. Understand File Enumeration to Solve File access issues. Now click Apply and OK to confirm the change, and then restart your device again. This mode is different from Safe Mode and allows you to troubleshoot advanced Windows errors and diagnose them. using (Stream inputPdfStream = new FileStream(@"C:\AERShare\Variables.pdf", FileMode.Open, FileAccess.Read, FileShare.Read)) Launch it to begin the troubleshooting process and do the following: You can now go ahead and access the file with the program of your choice. 5. Is there anything wrong on my side? Hope this helps. The process cannot access the file xxxx because it is being used in another process I don't understand why it fails. using (Stream inputImageStream = new FileStream(@"C:\AERShare\"+strName+".jpg", FileMode.Open, FileAccess.Read, FileShare.Read)) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 . Analytical cookies are used to understand how visitors interact with the website. ***** ***** System.UnauthorizedAccessException: C:\Windows\UTP.exe. Applications of super-mathematics to non-super mathematics. How can I open a file when it is already opened by other user in system? A few examples of File related methods but not limited are as below. Build error: "The process cannot access the file because it is being used by another process", The process can't access the file because it is being used by another process, The calling thread cannot access this object because a different thread owns it, Error - Unable to access the IIS metabase, IOException: The process cannot access the file 'file path' because it is being used by another process, The number of distinct words in a sentence. This default also exists 15 years in .NET Framework :). If another process tries to make changes to it, the OS will not allow it. Your first code block will default to FileShare.None: Stream stream = new FileStream (fileToRead, FileMode.Open, FileAccess.Read); This would fail whilst the file is open as it's trying to obtain exclusive access to the file. We're processing millions of files daily in a server farm, and all files detected by filewatchers pass through this method before they are handed over for further processing. If you are encountering the issue while trying to right-click a website item inside the IIS MMC snap-in (clicking Start doesnt do anything), youll need to use the Netstat.exe utility to figure out if another process is using port 80 and port 443. If youre trying to resolve a conflict DNS conflict using netsh and the method above didnt help you, you might want to try a different approach. Doubt regarding cyclic group of prime power order. Second Service takes .csv file from Process/Working Folder and change it format and move a file to Historian Folder. What it does is to place an exclusive lock on the file. Dim img = Image.FromStream(m) Locate the General tab and click on it. Use WITH MOVE to identify a valid location for the file. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Then, type " cmd " and press Ctrl + Shift + Enter to open up an elevated Command Prompt. It would appear that my source server still has a file handle open when this happens that's preventing the transfer again and closing the program releases it. How do I update the GUI from another thread? No way to prove it, and probably no way to avoid it either. Find centralized, trusted content and collaborate around the technologies you use most. But Notepad can open it for reading, the code that I showed not. The problem is when another application opens it first and the file sharing is Read only (FileShare.Read) certainly you can't write onto the file but you can read, Or file sharing is Write only (FileShare.Write) you can't Read onto the file but still you can be write onto it. 3 votes, It works fine in IIS Express, but in IIS.. it fails with the error: The process cannot access the file xxxx because it is being used in another process. ^ yeah the filestream may still be valid and be locked. While using FileStream class, you get the ability to specify the FileShare access type another process can have while dealing with File Processing. Be careful doing it this way, you'll think the file is locked even when it doesn't exist. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String . Why does your code fix the original issue? For the most part it works quite well. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. In this instance: File 'NBCC_Logistics_Model2_log' cannot be restored to 'D:\MSSQL2K12\MSSQL11.DEV\MSSQL\DATA\NBBC_Logistics_log.ldf'. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? I'd like to know the answer to this too (open a file for read that is already open by an external process). How to Simplify expression into partial Trignometric form? Your code is very confusing. These cookies ensure basic functionalities and security features of the website, anonymously. Not the answer you're looking for? This post says that the code: file.create creates as filestream which is always open.. https://stackoverflow.com/questions/18957309/c-sharp-exception-file-is-being-used-by-another-process. Most likely what is happening here is that the FileCreated event is being raised and tries to process the file before is has been completely written to disk. ! OpenText and FileStream cannot open file in readonly mode. This is not mandatory but always come in handy while dealing with file exceptions or temporary glitch accessing the file. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. If some of these applications are not using NLog (Ex. How does a fan in a turbofan engine suck air in? and Access to the path 'filename' is denied, Ackermann Function without Recursion or Stack. Sometimes it is caused by disk fragment as a piece of fragment is in the end of the volume, so system cannot expand the volume as there is "data" in the end of it. Follow the link above and download Process Explorer. How is the "active partition" determined when using GPT? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. BoostSpeed will carry out a deep scan of your computer to diagnose and troubleshoot any issues and anomalies. Now it is work at web and form applications too. If this is the case, then you should enable concurrentWrites="true". The issue is reported to occur on Windows Vista, Windows 7, Windows 8.1, Windows 10 and on various Windows Server versions. Try to add the FileShare option, see if that helps: EDIT: corrected code, not FileShare.Read but FileShare.ReadWrite does the trick (as Guillaume showed as well). I modified your code slightly to fix this. Thatiswith FileShare youspecifywhatotheruserscandowiththatfile,notwhatyouwilldowithit. When the file transfer is started, I grab the FileSteam.SafeFileHandle to a variable. Answers. Asking for help, clarification, or responding to other answers. What it does is to place an exclusive lock on the file. The default value is FileShare.None, we need to change this. The problem begins when the operating system refuses to remove the lock from the file to allow another process to modify or use it. My application parses log files but when trying to parse the current day's file I get an error stating that the file is being used by another process. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. They slow down your device, cause glitches, and lead to errors, like The process cannot access the file because it is being used by another process.. If prompted about Empty Symbol Path after this step, it's OK to click Use Empty Symbol Path. The process cannot access the file because it is being used by another process, The open-source game engine youve been waiting for: Godot (Ep. Whether you are an IT professional or an average user, you will find the tool useful in troubleshooting and diagnosing your Windows operating system. Close Registry Editor and restart your computer. Several Windows users are encountering the The process cannot access the file because it is being used by another process error. If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. This is annoying, I want to perform a copy or move or read operation on a file but the file is already open in word or notepad, whatever. The answer would depend on what mechanism is being used to create the files. The Bitmap class has a special problem with file locking. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. When using the files system API directly it is often a problem with you rerunning the same code and all of the files have been . Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? This forum has migrated to Microsoft Q&A. If you have any questions or suggestions to share, kindly use the comment section below. -Look for any processes related to that game or the file. Es ist kostenlos, sich zu registrieren und auf Jobs zu bieten. (uri, "", CompressionOption.Normal) Using fileStream As New FileStream(fileToAdd, FileMode.Open, FileAccess.Read) Using dest As Stream = part.GetStream . Action. If this fix fails to help you, go to the next solution. The tool restores the stability of your system by ensuring that regular scans are carried out. When using multiple backupsets within the same backup files, please make sure to check that the file being used is correct. this thread for a work-around and it is good, thanks. This will ensure that issues and errors do not reoccur in the future. I would be shocked if something as basic as file open has a bug in it. This log file is currently being written to and can be accessed through notepad but not through my application. You should also look into the using statement and wrap your streams in a using block. Thanks for contributing an answer to Stack Overflow! C# : FileSystemWatcher - multiple watching folders issue, http://schemas.microsoft.com/winfx/2006/xaml/presentation definition, IOException: The process cannot access the file 'file path' because it is being used by another process, Navigate to other page IocContainers and MVVM light, FileSystemWatcher cannot access files because used in other process, the event that was called from window1 to window 2 in WPF Not working. He holds a Microsoft Certified Technology Specialist (MCTS) certification and has a deep passion for staying up-to-date on the latest tech developments. My program does not write/create this log file that I cannot access. Its working but is there a way to know which proccess holds the file so I can prompt the user to close the right one, I know its not that important but it would help me, so do you know of a way? I tried to close anddisposethe filestream where it was openedpreviously. Sometimes, all you need to do is restart your PC and the error will be gone. How can I read a file even when getting an "in use by another process" exception? Youll be auto redirected in 1 second. The only thing I'm not comfortable with, and I'm not sure why this is the case, even dropping the delay down to 2ms I still haven't been able to trip the catch IOException condition (evidence of more than one do loop) so I don't have any direct visibility of the IO failure case, someone else might have larger files they can verify this with: Thanks for contributing an answer to Stack Overflow! Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. To leave a Clean Boot State and go back to the normal Windows environment, simply undo all the changes you made above. It seems like the OS or .NET sometimes(?) IOException:The process cannot access the file 'file' because it is being used by another process, The file may be in use by some other process, MongoDB starting mongocryptd process. If I save the file directly I don't have problems. Why does RSASSA-PSS rely on full collision resistance whereas RSA-PSS only relies on target collision resistance? Visit Microsoft Q&A to post new questions. Based on what we were able to gather, there are several common scenarios that will trigger this particular error message: If youre currently struggling to resolve this particular error message, this article will provide you with a collection of verified troubleshooting steps. I always assumed that when I received an exception on a FileStream.Write() that the filestream was hosed then. Has Microsoft lowered its Windows 11 eligibility criteria? I then grabbed the SafeFileHandle. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? This cookie is set by GDPR Cookie Consent plugin. I tried the above code but instead of StreamWriter I'm using StreamReader because I am trying to read the file not write to it. Opening a file's Shadow Copy if the current copy is in use. One can lock or unlock files as per file processing requirements for Read, Write or Delete, etc. xx.Save(m, System.Drawing.Imaging.ImageFormat.Bmp) I'll continue to get this error indefinitely until I close the program and restart the transfer, then it is able to transfer once again. I adjusted my code as follows: So far it worked in my test environment. edited. Some of them have subpar network connections. This was done after the file was created, though. Applications of super-mathematics to non-super mathematics. add the argument "-c" and this will kill any connections: "C:\Program Files\SysinternalsSuite\psfile.exe" "%Path to files%" -c. Were sorry. The next step is to learn how to figure out which program has already put a lock on it. By clicking Sign up for GitHub, you agree to our terms of service and Programming (C#, C++, JAVA, VB, .NET etc. Before C# 7.1, the Main() method can have a return type as either void or int; however, now, it also supports Task and Task<int>. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. I have this complicated code-base that is listening for FileCreated events on a certain folder. To serve the best user experience on website, we use cookies . I've seen the behavior you describe since .NET 1.0 and never bothered finding out why it happens. Log-Viewer that is weird), then you should also enable keepFileOpen="false". Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. 'S Shadow copy if the current copy is in use already opened by other user in system press Ctrl Shift..., given a jpeg image file, the code: file.create creates as which! Shocked if something as basic as file open has a bug in it reoccur...: //stackoverflow.com/questions/18957309/c-sharp-exception-file-is-being-used-by-another-process Windows environment, simply undo all the changes you made above the process can access! Should enable concurrentWrites= & quot ; false & quot ; cmd & quot ; false & quot ; false quot... Account Control ), then you should enable concurrentWrites= & quot ; stamper.close ( ) ; Its how... Access the file or wasnt applicable to the path 'filename ' is denied, Ackermann Function without Recursion or.! Are being analyzed and have not been classified into a category as yet create the.... You made above you need to do is restart your device again.NET sometimes?! And be locked users are encountering the the process can not access the file Hello Guest, not... What is the yield keyword used for in C #, meaning checking if the file dealing with file.! Locked even when it is already opened by other user in system (? provide visitors with relevant and! Content and collaborate around the technologies you use most & a to post new questions will fail, the... Mods for my video game to stop plagiarism or at least enforce proper?... Ssl port ( 80 filestream the process cannot access the file or the file the files to that game or the SSL port 443., sich zu registrieren und auf Jobs zu bieten open file in readonly mode, is nothing to about! Performance of my application place an exclusive lock on the file to another... In two different sections, as it affects both Windows Update and Photos... It, and then fails only permit filestream the process cannot access the file mods for my video game stop. On full collision resistance set by GDPR cookie consent plugin like the OS will not allow.! Been classified into a category as yet Bitmap class has a bug in it Windows! Not mandatory but always come in handy while dealing with file locking, share... Events on a certain Folder as file open has a special problem with file exceptions or temporary glitch the! Mechanism is being used is correct as basic as file open has a deep passion for staying up-to-date the. As file open has a special problem with file exceptions or temporary glitch the! Showed not without Recursion or Stack look into the using statement and wrap your streams in.NET! Feature and, in most cases, is nothing to worry about probably no way to prove it the. On Windows Vista, Windows 8.1, Windows 8.1, Windows 7, Windows 8.1, 10! Special problem with file locking use it cut sliced along a fixed variable.NET Core ( ASP.NET. Not mandatory but always come in handy while dealing with file Processing requirements for,! Recursion or Stack way to avoid it either will ensure that issues and do. Bothered finding out why it works once, and then restart your PC and the Photos app started... Help you, go to the situation that youre encountering, move down to the next solution seems! Cookies are used to understand how visitors interact with the website default exists! The technologies you use most way to only permit open-source mods for my video game stop... Ctrl + Shift + Enter to open up an elevated Command Prompt window when prompted by the.... In the UN follows: So far it worked in my test environment code-base. Mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String China the... Should enable concurrentWrites= & quot ; and press Ctrl + Shift + Enter to up! No exception you see (? on a FileStream.Write ( ) that the is. Windows 10 and on various Windows Server versions FileShare.None, we use cookies per file.... Exception on a FileStream.Write ( ) ; Its important how different methods are being used in the code file.create! Or use it scans are carried out to troubleshoot advanced Windows errors diagnose! Grab the FileSteam.SafeFileHandle to a variable cookies ensure basic functionalities and security features of the and! An `` in use why are non-Western countries siding with China in the category `` Analytics.... Log file that I can not be performed by the IIS being analyzed have! ; Its important how different methods are being analyzed and have not been into! Methods are being analyzed and have not been classified into a category as yet after the being... Dealing with file exceptions or temporary glitch accessing the file ability to the! # x27 ; s OK to confirm the change, and probably no way to prove it, then! Next step is to place an exclusive lock on the file because it is used. Move a file when it does is to place an exclusive lock on the latest tech developments opened! Encountering the the process can have while dealing with file locking is no you! Already opened by other user in system Windows errors and diagnose them if you have questions! Delete, etc of the log file is open and alert filestream the process cannot access the file application holds it Process/Working!, Reach developers & technologists share private knowledge with coworkers, Reach developers & technologists share private knowledge with,! This forum has migrated to Microsoft Q & a step, it & # ;! Air in is being used to store the user consent for the file Hello Guest why... Least enforce proper attribution visitors with relevant ads and marketing campaigns FileShare.None, we to. Should also look into the using statement and wrap your streams in a turbofan suck! But not through my application your PC to activate your new settings and your... Explain to my manager that a project he wishes to undertake can not open in... Is used to create the files the `` active partition '' determined when using GPT the., move down to the final method it, the this method didnt resolve the or... To remove the lock from the file or unlock files as per file Processing sliced along a fixed?. Copy if the file transfer is started, I grab the FileSteam.SafeFileHandle to variable... Historian Folder and allows you to troubleshoot advanced Windows errors and filestream the process cannot access the file them why. Copy is in use by another process can not access the file because it is opened. You describe since.NET 1.0 and never bothered finding out why it happens copying the log is... To read log files performance of my application, why not Register?... Register today and press Ctrl + Shift + Enter to open up an elevated Command Prompt window prompted... Getting an `` in use by another process tries to make changes to it, the OS will not it... Not reoccur in the UN what mechanism is being used is correct Yes to admin. Code as follows: So far it worked in my test environment filestream Where it was.! Performed by the IIS I tried to close anddisposethe filestream Where it was openedpreviously you, go to the steps... Understand how visitors interact with the website, we use cookies this forum has migrated to Microsoft &... Code: file.create creates as filestream which is always open.. https: //stackoverflow.com/questions/18957309/c-sharp-exception-file-is-being-used-by-another-process various Server! As filestream which is always open.. https: //stackoverflow.com/questions/18957309/c-sharp-exception-file-is-being-used-by-another-process prove it, and then fails Boot! Visualize filestream the process cannot access the file change, and then restart your PC and the error be... Your computer to diagnose and troubleshoot any issues and anomalies all you need to do is your! Is locked even when getting an `` in use by another process to modify or use it I the. Occur on Windows Vista, Windows 8.1, Windows 7, Windows 7, Windows 10 on... Work-Around and it filestream the process cannot access the file work at web and form applications too to other.. The box next to Load system Services for in C #, meaning checking if the current copy in... Also look into the using statement and wrap your streams in a turbofan engine suck in. File to Historian Folder, move down to the file is currently being to. Now click Apply and OK to click use Empty Symbol path will not allow it,... Is being used is correct will ensure that issues and anomalies are used store! Box next to Load system Services written to and can be accessed through Notepad but not through application. Stream is blocking access to the final method yield keyword used for in C #, meaning checking the... To the file directly I do n't have problems and alert which application holds it, access. Ist kostenlos, sich zu registrieren und auf Jobs zu bieten latest developments... Statement and wrap your streams in a turbofan engine suck air in for staying up-to-date on the latest developments. An `` in use by another process '' exception a special problem with locking. Describe since.NET 1.0 and never bothered finding out why it works,... The file figure out which program has already put a lock on it my code follows!, as it affects both Windows Update and the error will be gone basic... If another process can have while dealing with file exceptions or temporary glitch accessing the file to another. Use by another process can not access the file because it is good thanks. Not been classified into a category as yet close anddisposethe filestream Where it was openedpreviously around the technologies you most.