How to set Incremental refresh in Power BI with the get data source - folder

[Kennyhaha]

Hi there, 

Recently i try to use the function - Incremental refresh and i follow the following tutorial step by step.

https://docs.microsoft.com/en-us/power-bi/admin/service-premium-incremental-refresh

however, I found a problem and cant solve it. I get data source from my folder and get a huge number of CSV file.

after I open the manage parameters and set the
Type: Date and Time

Suggested values: any value

Current Value: my selected date (eg. 10/10/2020 )

the Queries shown that:

Expression.Error: We cannot convert a value of type Binary to type DateTime.
Details:
Value=[Binary]
Type=[Type]

and:

Expression.Error: The parameter is expected to be of type Text.Type or Binary.Type.
Details:
29/10/2020 0:00:00

how to solve thsi problem or incremental refrsh cant apply to get data source: folder??

[amitchandak]

@Kennyhaha , you are getting wrong values in the column or the transformation is failing. Click on the very first step and check value .

refer how to handle error in power query
https://www.youtube.com/watch?v=OE6DPmKqN7s
https://www.youtube.com/watch?v=9-Lag0VOiTs

Also refer : debug issue
https://www.youtube.com/watch?v=OE6DPmKqN7s