警告：There are 2 audio listeners in the scene. Please ensure there is always exactly one audio listener in the scene.
解决：两个摄像机两个audio listeners组件，禁用一个就好了。

错误：Scene ‘xxxxx’ couldn’t be loaded because it has not been added to the build settings or the AssetBundle has not been loaded.
To add a scene to the build settings use the menu File->Build Settings…
UnityEngine.SceneManagement.SceneManager:LoadScene (string)
解决：打开菜单File->Build Settings，所需场景都拖进去，前面打勾，关掉该窗口，就好了。