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Anonymous's avatar
Anonymous
Not applicable
2 years ago

Unexpected parquet exception occurred. Class: 'ParquetStatusException'

Hi I am getting errors on my power bi desktop app and web published versions. Its connecting to Azure Data Warehouse through a dataset though even if I create a new report and connect direct to ware...
dataflow
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Anonymous's avatar
Anonymous
Not applicable
2 years ago

Hi


Thanks for your reply. The strange thing is that when I first create the flow it all works fine. Then if I re-run the Dataflow I get the issue. I have found that if I then 'drop' the table, go back to the flow and get it to recreate the table and rerun the import it all works again. The only difference is that on the first run it creates the table, on the second run it is replacing the data. 

 

Hope that makes sense.

 

Regards

Toby

kroma's avatar
kroma
Regular Visitor
2 years ago

Hi,

I have the same issue. I am not able to create any report using Fabric Warehouse default semantic model after refreshing Fabric Warehouse data using DataFlowGen2.

Error:

Unexpected parquet exception occurred. Class: 'ParquetStatusException' Status: 'IOError' Message: 'Encountered Azure error while accessing lake file, StatusCode = 404, ErrorCode = , Reason = Not Found'

This looks like a bug. 

Workaround: do not use warehouse default semantic model, but create new semantic model and use it for your reports. It will still work after warehouse data refresh.

Regards,

Romans