I have started get the following error message when I run my project.

CallMethod: 102_pathbuilder Constructor Object required.

I have no idea how to fix this. I'm new and I was going through the manual and trying object. Thank you for your help.

Hi, Joyce,

Probable reason is absence of test structure in object. I.e. Test Controller needs Task Controllers to work properly, and probably cannot find it.
Actually we do not recommend to use these objects - they are too complex in implementation and we are planning to remove them from package.