Unity built-in Packages Compiler Errors
问题 I just started learning how to use Unity to make a simple 3D game. It's working fine when it comes to creating the environment, but once I imported the built-in Character package it gave me a compiler error and wouldn't run (All compiler errors have to be fixed before you can enter playmode!). Removing the imported package removes the error and it can run, I tried using other built-in packages like 2D or Cameras but same problem occurred. After adding 2D package, here's the console (error