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Helper IV
Helper IV

Error: We couldn't fold the expression to the data source. Please try a simpler expression



I'm using the Microsoft CDQ Connector with PowerQuery and whenever I add measures I randomly get this error message: 


I'm not using complex expressions... just filtering and basic operators. 

This is starting to heavily affect my work. Is there a workaround that I can use? I'd rather not roll back to a previous version of Power BI. Any suggestion is welcome! 


Thanks in advance! 

Super User
Super User

It looks like you are using direct query. Can you use import mode? Direct Query has some limitations on what DAX you can do, and you are hitting quite a few of them. 


See this article on Direct Query.


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MCSA: BI Reporting

Hi, Unfortunately I cannot use Import mode. I'm working on a large set of data. 
I found that aggregators don't work well, so I'm pretty much going around it by counting and filtering. 


I managed to recalculate most of what I need... still in the weeds for some of them, but I'm figuring it out! 



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