Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI Data Visualization World Championships is back! It's time to submit your entry. Live now!

Reply
malcolmph
New Member

Data Refresh Errors

i am very new to Fabric. i have a dataflow setup, with a semantic model and report which all works, however i am getting the following error on a dataflow gen2 scheduled refresh. The destination for the data is in Lakehouse. My only fix a the minute is to delete the table out of the Lakhouse and then it recreates automatically but subsequent refreshes fail.

Private data below replaced with xxxxxxxxxxxxxxxx

 

any help appreciated. i have tried deleting the tables and recreating but every refresh fails.

 

xxxxxx_WriteToDataDestination: There was a problem refreshing the dataflow: "Couldn't refresh the entity because of an issue with the mashup document MashupException.Error: Error in replacing table's content with new data in a version: #{0}., InnerException: #{0} failed to get contents from '#{1}'. Status code: #{2}, description: '#{3}'., Underlying error: AzureDataLakeStorage failed to get contents from xxxxxxxxxxxx. Status code: 409, description: 'The specified path already exists.'. Details: Reason = DataSource.Error;ErrorCode = Lakehouse036;Message = AzureDataLakeStorage failed to get contents from 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'. Status code: 409, description: 'The specified path already exists.'.;Detail = [DataSourceKind = "Lakehouse", DataSourcePath = "Lakehouse", DataSourceKind.2 = "AzureDataLakeStorage", DataSourcePath.2 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx", HttpStatusCode = 409, HttpStatusDescription = "The specified path already exists."];Message.Format = #{0} failed to get contents from '#{1}'. Status code: #{2}, description: '#{3}'.;Message.Parameters = {"AzureDataLakeStorage", "xxxxxxxxxxxxxxxxxxxxxxxxxx", 409, "The specified path already exists."};ErrorCode = 10266;Microsoft.Data.Mashup.Error.Context = User GatewayObjectId: b01b6364-d16a-4eaf-80d5-8e7a3c7b7348". Error code: 104100. (Request ID: 5c8f0582-c49c-46a0-9476-e05bec896ac1).

1 ACCEPTED SOLUTION
Alven
Microsoft Employee
Microsoft Employee

Hi @malcolmph,

we identified the root cause and we should have fixed it. Can you please try to refresh the dataflow again and let us know if the issue persists?

 

Thanks,

Alessandro

View solution in original post

4 REPLIES 4
Alven
Microsoft Employee
Microsoft Employee

Hi @malcolmph ,

we are investigating the issue and will come back to you once we have more details.

Meanwhile, if your dataflow does not access on-premise data sources, you could try to not use the gateway and see if you are able to write to the Lakehouse.

 

Regards,

Alessandro

Alven
Microsoft Employee
Microsoft Employee

Hi @malcolmph,

we identified the root cause and we should have fixed it. Can you please try to refresh the dataflow again and let us know if the issue persists?

 

Thanks,

Alessandro

vivien57
Power Participant
Power Participant

Hello @malcolmph ,

Do you have a "Replace" in "Update Method" on the Data Destination ?

vivien57_1-1768293696295.png


Have a nice day,

Vivien

yes i have replace

Helpful resources

Announcements
December Fabric Update Carousel

Fabric Monthly Update - December 2025

Check out the December 2025 Fabric Holiday Recap!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.