bad IL range

[tek2hd]

im getting a message of "DataSource.Error: An error happened while reading data from the provider: 'Bad IL range.'" on a project that up till today had been working just fine. I havent made any changes to any of the querys but none of them work now. 

[tek2hd]

Ive reinstalled everything from the mysql connector to doing a fresh install of power bi desktop and i still cannot get past this error can anyone please help me out with this?

[v-ljerr-msft]

Hi @tek2hd,

Base on my research, the error is thrown when an assembly is corrupted, and there could be many and various reasons for this to happen: viruses, hardware failure, software bugs or a wrong action taken by the user.

We can't do much about that, if the problem persists I would suggest you to reinstall the newest version of Power BI Desktop or .NET Framework to see if it works.

Regards

[MarcelBeug]

Although this would become too technical for me: I just searched for the error message and got a lot of hits, including https://blogs.msdn.microsoft.com/carmelop/2013/06/12/system-badimageformatexception-bad-il-range-wha...

So I would expect the cause of the error being somewehere at your data source and not in the queries.