After a response from support, I am pretty sure Solution Workbench is fully broken. I tried building a solution and I get Error Package creation failed: startIndex cannot be larger than length of string. (Parameter ‘startIndex’).
Support’s response was;
In 2025.2.4, Epicor uses a new internal parser for solution XML metadata. A Substring() call in the SolutionBuilder class incorrectly assumes certain strings (like VersionInfo) are always a minimum length. When any field is shorter or missing, it throws
This is tracked under internal defect CSF-19548 / PRB0247998, expected to be patched in 2025.2.6
I went as far as just adding an out of the box BAQ and it still fails. Of course 2025.2.5 was released yesterday, so my upgrade may have to wait a bit because I’m not doing it without the ability to export customizations my consultant fixed in the Test environment.