Currently we are using InstallShield 2015 for creating Installers for deploying Web Application developed in .NET. We were able to create Installers successfully till couple of months back without any issues. But after a specific check-in, the InstallShield throws “6109 – Internal Build Error”, which does not provide much clue. When further analyzed, following are the changes done in that specific check-in. 1. 6 images were deleted and 1 new image and 1 css file were added 2. Controllers and Resource files were modified Tried to revoke these changes but still the error exists. I created a new IS project and still the error occurs. Error occurs when the content output is included but is successfully build just with primary output. Have come across few posts that discuss that it could be because of some missing files but in the Project Solution there were not any missing files or from the dependency scan done in the Installshield. Can anyone who has experience similar issue can suggest on how to figure out missing files in the Installshield that could possibly throw the build error? ... View more