You can go to your "projects" folder (aka generation destination folder) which is configured in the .ini file.

In there, next to the "BaseCase" file, you will find an errlog.txt file. 

There can be 2 errors type when generating a solution:

• One type is where the generation finishes and the final results window shows that there were errors during the generation. To find this errors in the errlog.txt file, search for the keyword "error", which will show 1 search result per error, and its description;

• Another error type is where the generation does not reach the end, and finishes with an exception. To find this error, in the same errlog.txt, go to the end of the file where you can find the stack trace for the error location.

Please keep in mind the errlog file is overwritten every time a new generation is initiated.