What is this error in my build?.

Development Programming & Scripting
2

Out of the wall of text this part seems important

D:\Unreal Projects\MiniJuego\Content\FirstPerson\Blueprints\BP_Rifle.uasset: [Compiler] Could not find a variable named “FirstPersonMesh” in ‘BP_FirstPersonCharacter_C’.
UATHelper: Packaging (Windows): Make sure ‘BP_FirstPersonCharacter_C’ has been compiled for Obtener FirstPersonMesh

  • Does BP_Rifle contain the variable FirstPersonMesh?

  • Go into BP_FirstPersonCharacter_C and check if you need to press compile (if it has changed)