Symptoms

Solution Won't Build. After setting up a developer's workstation for access to workflows, visual studio won't build or deploy the solution. The new environment also does not receive any errors or the build it just fails.
 

Diagnoses

During an online meeting we excetude the build to see the behavior. There were approximately 20 Workflows in the solution. The warning that was the most notorious was the Design Templates out of sync for all the Workflows which were flooding the Output windows. Due the amount of workflows we decided to work on one workflow, but that didn't help for the whole solution and only build that particular Workflow. We updated the templates of all the workflows and included them on the Build. This time the Design Templates Warnings were gone which let us to see the real issue.

 

Resolution


There were two DLLs that got removed from the Project. These DLL's were still being referenced in the project for one workflow. After editing the Start activity of the Workflow and removing the reference to those Dll's, we were able to successfully build the solution.