com.sap.tc.buildplugin.pp.PackException: No WEB-INF folder found

Hello Experts,

We are doing an upgrade from CRM 7 to CRM 7 EHP2 on NW 7.3. We have created new track for upgrade and followed all upgrade related steps for importing SCAs into the new track. We have also resolved the DTR conflicts, now in the process of building the custom application in local J2EE system. When we are trying to build SHRWEB-crm/isa/web/b2b, getting the following error:

1. com.sap.tc.buildplugin.pp.PackException: No WEB-INF folder found.

Please find attached complete build.log files. Also when I created project, it has prompted for ‘Migration’ as I m using NW 7.3 and SAPJVM 6. I migrated due to which WEBINF folder is deleted from root and placed into webcontent as shown below screenshot (is this expected behavior?)

Requesting for your expert advice here, Kindly suggest to get rid of the above error. I could create/build other projects like b2c, useradmin etc successfully but I face problem only with b2b.

Thanks!