What does “exited with code 9009” mean during this build?

Did you try to give the full path of the command that is running in the pre- or post-build event command?

I was getting the 9009 error due to a xcopy post-build event command in Visual Studio 2008.

The command "xcopy.exe /Y C:\projectpath\project.config C:\compilepath\" exited with code 9009.

But in my case it was also intermittent. That is, the error message persists until a restart of the computer, and disappears after a restart of the computer. It is back after some remotely related issue I am yet to discover.

However, in my case providing the command with its full path solved the issue:

c:\windows\system32\xcopy.exe /Y C:\projectpath\project.config C:\compilepath\ 

Instead of just:

xcopy.exe /Y C:\projectpath\project.config C:\compilepath\

If I do not have the full path, it runs for a while after a restart, and then stops.

Also as mentioned on the comments to this post, if there are spaces in full path, then one needs quotation marks around the command. E.g.

"C:\The folder with spaces\ABCDEF\xcopy.exe" /Y C:\projectpath\project.config C:\compilepath\

Note that this example with regards to spaces is not tested.

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