Scheduled refresh error with the dataset

[BIDataRef]

One of my scheduled report refresh started failing with the error - 

There was an error when processing the data in the dataset.

Processing error:

An error happened while reading data from the provider: 'Value cannot be null. Parameter name: key'

There is no parameter named key in the dataset. It seems that some kind of misleading error. I refreshed the dataset locally and it worked fine without an error and then published it again. Then, tried to refresh it through Power BI service, but it failed.

Could someone please help me with this ?

[BIDataRef · Accepted solution]

This is resolved now !! I debugged individual tables and found that there was some issue with the table. Hence I dropped and recreated the table which resolved the issue.