Forum Discussion
The error Could not load file or assemblyPower BI Refresh Error on BigQuery Tables - Missing ADBC As
I'm encountering a refresh error in Power BI Desktop latest from Jan 2026 on Windows 11 when refreshing my dataset connected to Google BigQuery via the native Google BigQuery connector.
Issue Details:
- Affects only some tables (11 out of [total number] queries are blocked; others refresh fine).
- All tables use the exact same BigQuery data source and credentials (OAuth/Service Account - all verified as correct).
- Error occurs only on refresh (initial load works).
- Exact Error Message:
ADBC: Could not load file or assembly 'Apache.Arrow.Adbc.Telemetry.Traces.Listeners, Version=0.21.0.0, Culture=neutral, PublicKeyToken=204f54e5a45c07df' or one of its dependencies. The system cannot find the file specified.
14 Replies
Thank you for the suggestions.
Refreshing a single affected table still fails with the same ADBC error. The issue does not appear to be related to table size . The only consistent difference is that the failing queries use the BigQuery connector with Implementation="2.0". Switching them back to the default implementation resolves the problem.
v-ssriganeshCommunity Support
Hello gauravpatil-liv,
We appreciate your efforts and are pleased to hear that your issue was resolved. This will assist other community members in resolving similar issues more efficiently.This isn't a resolution. Telling people to use an older version is a workaround.
I have the same problem when I'm trying to refresh reports that are using a Databricks connection or when I'm trying to connect to a new table using Dtabricks connection. Because I've already have the query generated for the existing reports I was able to change the Implementation=2.0 to Implementation=1.0 and is working like this
Databricks.Catalogs(
ServerDataBricks,
PathDataBricks,
[
Catalog = CatalogDataBricks,
Database = null,
QueryTags = null,
EnableAutomaticProxyDiscovery = null,
Implementation = "1.0",
EnableQueryResultDownload="0"
]- v-ssriganesh
Hello araoim,
Please consider raising a Microsoft support ticket for further investigation. You can create a Microsoft support ticket with the help of the link below:
https://learn.microsoft.com/en-us/power-bi/support/create-support-ticket
How do I fix this if I'm not even connected to the database, hence I can't switch the implementation from 2.0 to 1.0?
- ToddChitt
Super User
What happens if you try to refresh ONLY ONE of the affected tables? (Right click on the table in the Fields pane on the right and select Refresh > Data).
Can you correlated table size/number of rows with failure? In other words, are only the BIG tables failing?
I too began getting this same error for both Snowflake & BigQuery native connectors as of this morning.
In my case appear the same error, any solution?
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