【问题记录】Unity莫名其妙的几百个报错，原来是许可证过期了

报错：

Assertion failed on expression: 'm_ErrorCode == MDB_MAP_RESIZED || !HasAbortingErrors()'

Asset database transaction committed twice!

Assertion failed on expression: 'errors == MDB_SUCCESS || errors == MDB_NOTFOUND'

原因：

Unity许可证过期···

解决：

重新**许可证即可