Publishing failed for an Unknown Reason

Anonymous 

Refer to this https://docs.microsoft.com/en-us/power-bi/create-reports/desktop-upload-desktop-files#republish-or-replace-a-dataset-published-from-power-bi-desktop

Also, you could try this (Import or connect to a Power BI Desktop file from Power BI) https://docs.microsoft.com/en-us/power-bi/connect-data/service-desktop-files#import-or-connect-to-a-power-bi-desktop-file-from-power-bi

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Anonymous 

I have few queries on this issue, Can you please share the below details.

1. PBIX File size

2. Capacity (Premium/Shared)

Note:- As my analysis your trying to publishing the PBIX file to Premium Capacity and while trying to publish you are facing the above issue. Please confirm us.

https://docs.microsoft.com/en-us/power-bi/guidance/import-modeling-data-reduction

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BR

venal.

Hi Anonymous,

What type of data source are your works? Connection mode? Where are you published? Classic workspace or new experience workspace that deployed in premium capacity? Please share more detailed information to help us clarify and troubleshoot your scenario.
BTW, any proxy or other redirection settings enabled in your device? Please also check your firewall and policy setting if they block power bi requests.
Regards,

Xiaoxin Sheng

Hi, I also encounter this issue and tried everything I could including deleted all the queries, restart, change account.... but not working...

Did you work it out?

Try to upload pbix file to Power BI Service using sharepoint folder. I had a similar issue when using Power BI Datasets using direct query