热更新例子打开项目报错font/stake_number.fnt, message: TypeError: Cannot read property 'uuid' of undefined

之前1.9就报错,更新到1.91还是报错。Failed to post import asset /Users/…/assets/font/stake_number.fnt, message: TypeError: Cannot read property ‘uuid’ of undefined,论坛找了找,又出现这个问题的,但是都没具体说明怎么解决的