Error in loading  albert-base-v2
![image](https://user-images.githubusercontent.com/25845940/76815952-f3be9700-6839-11ea-9ef9-53bc3655cefa.png)
![image](https://user-images.githubusercontent.com/25845940/76815974-020cb300-683a-11ea-830a-8a26b1eb6822.png)

Help~~
The above problems appear in loading the pre-trained Albert by transformers.  
@anjubaoGDUT If you can provide the code in text (instead of image) that can copy and paste, it is easy to test. <|||||>This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
