During the installation wizard, you select the "Npgsql GAC Installation" option. This registers the driver so Power BI can detect it globally on your system. If this is not selected, the "provider not found" error will persist. 4. Finalize the Setup
If a manual installation is required, follow these steps to ensure compatibility: npgsql download power bi
Search for the file for your chosen version (e.g., Npgsql.msi ). 3. Critical Installation Setting During the installation wizard, you select the "Npgsql
Modern versions of (December 2019 and later) include a built-in Npgsql provider , meaning you often do not need to download or install anything manually. However, if you are using an older version, a Power BI Gateway, or encountering provider errors, manual installation remains a critical step. Current Status: Do You Need to Download Npgsql? Before downloading, check your version of Power BI Desktop: a Power BI Gateway
Ensure you are using the 64-bit version if your Power BI Desktop is 64-bit.
Npgsql 4.0.17 is the most stable for modern Power BI builds.
Power BI is currently incompatible with Npgsql 4.1 and higher due to .NET version requirements.