问题
I'm trying to get data from a PostgreSQL database into PowerBI Desktop but it doesn't seem to work. I think the problem is with the installation with npgsql. When trying to setup a new database connection in PowerBI I type in the database and server, and this is the error message I get:
"Unable to connect Details: "PostgreSQL: We were unable to find a database provider with invariant name 'Npgsql'. This error could've been the result of provider-specific client software being required, but missing on this computer. To download client software for this provider, visit the following site and choose the 64-bit (x64) version of, at minimum, 'Npgsql version 2.0.12': https://go.microsoft.com/fwlink/?LinkID=282716""
I've tried going npgsql website and install the required components but I can't seem to get it working. I'm not a developer so this is a bit complicated for me. Does anyone know how to get these components installed? I very much appreciate your help!
I'm using Windows 10 on a Surface Pro 3 if this helps. And I do have Visual Studio Community installed as well.
Best, Bruno.
回答1:
I have downloaded and tried it with version 3.6.6
- Install npgsql
- During the installation stage, enabled "Npgsql GAC Installation" as GAC requires Npgsql.
- Restart the PC.
It should work now.
回答2:
The solution from this page helped me: https://community.powerbi.com/t5/Community-Blog/Configuring-Power-BI-Connectivity-to-PostgreSQL-Database/ba-p/12567
Select the option to install to the GAC during install of the program npgsql v3.x.x downloaded from this page https://github.com/npgsql/Npgsql/releases
It worked for me (although I do not know why:-)
回答3:
When you install Npgsql you should enable installation into the GAC. Otherwise component will not be automatically detectable to other programs.
来源：https://stackoverflow.com/questions/34020719/installing-ngpsql-to-use-postgresql-in-powerbi