“could not be compiled. Try rebuilding from source manually.”

Development Programming & Scripting Blueprint
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19

I had the same issue “could not be compiled” and I solved it. Do you still have this problem?
In case yes, some suggestions :

  • Keep UE and Visual closed meanwhile ;

  • Ensure , you’ve installed and configured everything visual needs to works properly with UE as shown in this video https://www.youtube.com/watch?v=HQDskHVw1to ;

  • Ensure , inside editor/project.Target.cs engine’s versions is exactly the one you’re using ;

  • If you wrote already some code in your .h and .cpp , check if pubblic/private classes you’re using , are also declared in yourproject .Build.cs file, in case not add them

EXAMPLE :

PublicDependencyModuleNames.AddRange(new string { “ADD HERE”}); If it’s a public one

  • Check if your project’s name inside .h and .cpp is well referenced ;
  • Refresh your u.project folder ;
  • Re-generate visual studio project files ;
  • Re-launch your UE project, rebuild if needed.
  • Once inside, update your project.