Microsoft Dynamics AX (Archived)

System.IO.IOException: The file exists - QRCode.Encoder.GetTempFile(String input)

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Posted on by Luan Nguyen

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I got the problem when running the RDP report on LIVE (another environment still okay).

here is stack

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.IOException: The file exists.

   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.Path.InternalGetTempFileName(Boolean checkHost)
   at Microsoft.Dynamics.QRCode.Encoder.GetTempFile(String input)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at Microsoft.Dynamics.AX.ManagedInterop.ClrBridgeImpl.InvokeClrInstanceMethod(ClrBridgeImpl* , ObjectWrapper* objectWrapper, Char* pszMethodName, Int32 argsLength, ObjectWrapper** arguments, Boolean* argsAreByRef, Boolean* isException)

As far as I debug

qrCodeReturn will return path of temp file, but error cause here. Try to delete AppData\Local\Temp, but It's didn't work.

You could take a look at these standard method EInvoiceCFDIReportDP_MX.callQRCodeEncoder() and EInvoiceCFDIReportDP_MX.callQRCodeEncoderMethod(), current I'm using these code to create QR code report.

Thanks in advanced for your advise.

Max

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Martin Dráb 237,965 Most Valuable Professional on at

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This may happen if your Temp folder contains too many files (more than 65535). If it's the case, simply clean up the folder. Just make sure you're working with the right Temp folder - get it from System.IO.Path::GetTempPath() or consult documentation.

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Luan Nguyen 689 on at

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Martin,

thanks for your answer.

I did delete AppData\Local\Temp folder on my user and It didn't work, as I mentioned before. I think this is a cross-application limitation.

Do you have another advise?

thanks,

Max

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Martin Dráb 237,965 Most Valuable Professional on at

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Your reply doesn't address my suggestion - have you verified that AppData\Local\Temp is the right folder? (See details in my previous reply.)

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Luan Nguyen 689 on at

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Martin,

Yes, you were right.

I got wrong folder. It wasn't current user folder. It used AOS user account, the function worked after deleting Temp folder.
System.IO.Path::GetTempPath() this one just return current user domain temp folder.

To prevent this error happen in future, we can use this code

System.IO.File::Delete(tempFileName);

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Martin Dráb 237,965 Most Valuable Professional on at

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Of course that GetTempPath() returns the temp folder of the current user, the point is that which folder it is depends on configuration; calling the method (in the same user context) shows you which folder is used by GetTempPath(), so you can work with the right folder.

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Jose Eliseo Nunez 29 on at

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Hi according your comments cleaning temp folder fix this issue, quick question this folder should be cleaned on the AOS where services ae running? and should be with service user?

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