TLBIMP.EXE - Error TI0000 - *.dll is not a valid type library

deployment tlbimp
Ian picture Ian · Jun 17, 2009 · Viewed 12.6k times · Source

While building our project on the Build Server, the compilation fails with the error message:

TlbImp: error TI0000 : The input file 'C:\*.dll' is not a valid type library.

We tried to manually invoke the TlbImp command thru the VS2005 Command Prompt and the same error message appeared.

To investigate, we tried to create a clean build environment in a Virtual Machine (Vbox), then we run the build there. It went fine.

We also tried to invoke the same TlbImp command thru the VS2005 Command Prompt and it succeeded.

With that, we are assuming that there is nothing wrong with the DLL. Do you have any idea what scenario(s) can cause this problem?

EDIT: Found the problem, see my answer. ;)

Answer

Aamir picture Aamir · Jun 17, 2009

If it is working on one machine and not on the other, then most probably some dependency of this DLL is missing in your machine. Inspect the dll through DependencyWalker and you will get to know that which dependency hasn't been built properly.

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