Plugin:Failed to load Outer for resource 'UserConstructionScript': BlueprintGeneratedClass /Game/TopDownCPP/Blueprints/TestCharBP.TestCharBP_C

I had wirte a c++ plugin TestChar, and create a new blueprint derived by TestChar, but can’t find the c++ class when I restart vs. help pls.Do I need to config any where?

LogOcInput: Can’t find Oculus library dev build: is proper Runtime installed? Version: 0.8.0.0
LoadErrors:Warning: Warning CreateExport: Failed to load Outer for resource ‘UserConstructionScript’: BlueprintGeneratedClass /Game/TopDownCPP/Blueprints/TestCharBP.TestCharBP_C
LoadErrors:Warning: Warning CreateExport: Failed to load Outer for resource ‘Arrow’: TestCharBP_C /Game/TopDownCPP/Blueprints/TestCharBP.Default__TestCharBP_C