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Asked: 2026-05-27T23:14:55+00:00

I need to compile a code in C++ which has some OpenCV functions and

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I need to compile a code in C++ which has some OpenCV functions and does a kind of test. The fact is that the code has worked in other computers, I just need to set the includes and libraries properly to make it work on my PC.

I get this strange error in release mode when building.

Error: general error c101008d: Failed to write the updated manifest to the resource of file ".\bin\pcTest.exe". The process cannot access the file because it is being used by another process. mt.exe

I found other answers that say mt.exe has to do with the antivirus, or something like that. Anybody knows why is this happening or how can I solve it?

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1 Answer

  1. Editorial Team

    Is the .exe file there when you look for it? If so, check whether something else is locking it using LockHunter (http://lockhunter.com). The only time I’ve had this error is when I’ve already been running the program and then tried to build it again — make sure that’s not what’s happening 🙂

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