Failed to extract the cab file in the solution.(FYI, the wsp solution file is a cab file. just try to rename *.wsp to *.cab)
There are two reasons that I found causing this kind of error:
- Having some special characters in files names in the solution, in my case it was "(" and ")".
- Having two DLLs with the same name even if one is in the GAC folder and the other in bin folder, this happened in my case by mistake, but it's good to know anyway.