Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Request now
Hi everyone,
I'm connecting to Postgres using Power BI Desktop with no problems (both from my local machine and from a Virtual Machine).
I also have a gateway installed in the VM, and thanks to it I'm able to schedule refreshes from Oracle with no problems.
I'm facing a problem when trying to refresh PBI Semantic Models (in the Service) which are using Postgres.
The error I'm getting is the following:
Data source error[ValidateMarkupTags]{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[{"code":"DM_ErrorDetailNameCode_UnderlyingErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"DM_ErrorDetailNameCode_UnderlyingErrorMessage","detail":{"type":1,"value":"[ccon]Please install Npgsql version 4.0.17.0</ip> or earlier.[/ccon]"}},{"code":"DM_ErrorDetailNameCode_UnderlyingHResult","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.ErrorCode","detail":{"type":1,"value":"10305"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourceKind","detail":{"type":1,"value":"PostgreSQL"}},{"code":"Microsoft.Data.Mashup.ValueError.DataSourcePath","detail":{"type":1,"value":"[ccon][ccon]<ip>XXX.XXX.XXX.XXX</ip>[/ccon]<ip><ip>XXX.XXX.XXX.XXX</ip></ip>;XXX[/ccon]"}},{"code":"Microsoft.Data.Mashup.ValueError.Reason","detail":{"type":1,"value":"DataSource.MissingClientLibrary"}}],"exceptionCulprit":1}}}
Any suggestions on how to install correctly Npgsql version 4.0.17.0?
I've tried from here https://github.com/npgsql/npgsql/releases/tag/v4.0.17 using the .msi but unsuccessfully.
Thanks in advance
Solved! Go to Solution.
You are my saviour!!! Kudos to you
Check out the November 2025 Power BI update to learn about new features.
Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!
| User | Count |
|---|---|
| 43 | |
| 19 | |
| 13 | |
| 12 | |
| 10 |