The process cannot access the file because another process has locked a portion of the file. 57

Question

Hi I am suddenly getting this error loading a text file.

It has always worked and now on my main development PC it has stopped loading the file with the above error

Win 10 fully updated.

Even the compiled program prior to last win 10 update hangs. On other Pc's its ok and compiled works !!

This is code pretty straightforward

        DBst = ""
        FileOpen(2, FILEst, OpenMode.Input)
        Do While Not EOF(2)
            DBst = DBst + InputString(2, 1)
        Loop
100:    FileClose(2)

Is it to do with One Drive, the program was on part of One Drive but also does not work locally

The data files are not on One Drive.

The actual data is partially loaded

Odd ?

Steve

Answer 1

Hi Steve,

According to the error message, this issue should be caused by the file that you operated is used by other process. Please check whether it is read or write by other process. For example, the file is opened in File Explorer or read by other process from your program.

You could use Handle or Process Explorer to check which process uses your data file first. And you need to check whether there has other code in your program read the file but not close read process, please refer to:

https://social.msdn.microsoft.com/Forums/vstudio/en-US/f53b3ddf-0800-4aa4-93a9-9eba7c201679/the-process-cannot-access-the-file-because-another-process-has-locked-a-portion-of-the-file?forum=vbgeneral

In addition, since this issue only occurs on your main development machine, please make sure current Windows user has administrator permission. And make sure the Visual Studio is running as administrator.

Best Regards,
Weiwei

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