Problem description:

After upgrading to V7.3, build fails right after the "preparing build step" or doesnt do anything.
Build Monitor looks like this:

Cause:

This problem occurs with non English Visual Studio - usually: VS2015, VS2017
The reason for this problem is that IncrediBuild searches for the default English Language Pack and if it cant find it, this error occurs.

Solution:

This issue will be solved in V7.31.
In case upgrading to this version is not possible, as a workaround, add the English Language Pack to the relevant Visual Studio. There is no need to set it as the default language - its just has to be present.