Hey Fantrex,
This is the error I’m seeing in your logs: LogBlueprint:Error: [Compiler ThirdPersonCharacter] Error Spawn node K2Node_SpawnActorFromClass_0 must have a Class specified. from Source: /Game/ThirdPersonBP/Blueprints/ThirdPersonCharacter.ThirdPersonCharacter
I recommend making sure that your Spawn Actor From Class node in your Third Person Character blueprint specifies a class in order to resolve this, and then attempt to package again.
If you still receive a packaging failure, please provide your new output log from your project’s Saved->Logs folder so I can take a look at your new errors.
Have a great day