Re : not working after building hellow world application, building was successfull. (javascriptmvc v3.3)

Yes, but I suppose, if application is working before building, it must work and after successful building, or otherwise it  is the issue.

I made experiments with different structures:

the structure is not working in production mode too:

      webcontent     
            javascriptmvc
                  myprojects
                        project1
                        project2

and  ONE and ONLY ONE structure is working in production mode:
     
      webcontent
            javascriptmvc
                  project1
                  project2

I have practice to separate project content from frameworks to share the same framework with several teams...