Forum Discussion
Error Specified key is not a valid size for this algorithm
So I've been doing some testing using different data sources (Web, Excel File, SharePoint Folder...) and queries that were working previously are now broken. This is the error in Query Editor: ...
Thanks for the suggestions BrianFleming, I have tried clearing the cache - no luck for me yet.
What data sources are you trying to connect to?
What types of fields have you got in the data?