Forum Discussion
Connector Postgre SQL DATABASE
Hi,
I want to get data from a PostgreSQL database but the error appear "This connector requires one or more additional components to be installed before it can be used". I installed Npgsql-3.2.4.msi , I restart computer but the same error. Help me please.
pabloreadi,
It seems that your PostgreSQL is secured with SSL. To make Power BI Desktop work with secured PostgreSQL, you would need to copy SSL certificate for the PostgreSQL server to the machine running Power BI Desktop and import it to Windows certificate store. Because Power BI Desktop uses the windows certificate store to decide what to trust, once you tell the Windows that is running Power BI Desktop to trust the SSL certificate for the PostgreSQL server, Power BI Desktop will trust it too.
In addition, in the configuration folder for the PostgreSQL server there is a postgresql.conf file, search it for SSL settings, there is one with the location of the SSL certificate. Take a look at the server name when you import the SSL certificate and connect from Power BI Desktop using the same server name. Then check if the above error goes away.
There is a similar thread for your reference.
http://community.powerbi.com/t5/Integrations-with-Files-and/Postgres-error-with-Power-BI-Desktop/td-p/8799
Regards,
Lydia
25 Replies
pabloreadi,
In my environment, I installed Npgsql 3.1.7 and I selected the option to install to the GAC during the installation process, there is no issues when I connect to PostgreSQL in Power BI Desktop.
In your scenario, please ensure that you select the option to install to the GAC when installing Npgsql 3.2.4. And you can also try to install 3.1.7, then check if the connection is successful.
Regards,
LydiaAnonymous thanks for your answer, when I installed Npgsql 3.2.4 I selected the option to install to the GAC, well i uninstall this version and install Npgsql 3.1.7, and I advance one step but now the error is the following:
DataSource.Error: TlsClientStream.ClientAlertException: CertificateUnknown: Server certificate was not accepted. Chain status: A certificate chain could not be built to a trusted root authority. . at TlsClientStream.TlsClientStream.ParseCertificateMessage(Byte[] buf, Int32& pos) at TlsClientStream.TlsClientStream.TraverseHandshakeMessages() at TlsClientStream.TlsClientStream.GetInitialHandshakeMessages(Boolean allowApplicationData) at TlsClientStream.TlsClientStream.PerformInitialHandshake(String hostName, X509CertificateCollection clientCertificates, RemoteCertificateValidationCallback remoteCertificateValidationCallback, Boolean checkCertificateRevocation) Details: DataSourceKind=PostgreSQL
I'am looking for the solution, but I cannot understand about the security and certificates.
pabloreadi,
It seems that your PostgreSQL is secured with SSL. To make Power BI Desktop work with secured PostgreSQL, you would need to copy SSL certificate for the PostgreSQL server to the machine running Power BI Desktop and import it to Windows certificate store. Because Power BI Desktop uses the windows certificate store to decide what to trust, once you tell the Windows that is running Power BI Desktop to trust the SSL certificate for the PostgreSQL server, Power BI Desktop will trust it too.
In addition, in the configuration folder for the PostgreSQL server there is a postgresql.conf file, search it for SSL settings, there is one with the location of the SSL certificate. Take a look at the server name when you import the SSL certificate and connect from Power BI Desktop using the same server name. Then check if the above error goes away.
There is a similar thread for your reference.
http://community.powerbi.com/t5/Integrations-with-Files-and/Postgres-error-with-Power-BI-Desktop/td-p/8799
Regards,
Lydia
Could you add the information about the GAC for NPGSQL into the prerequisites https://docs.microsoft.com/en-us/power-bi/desktop-data-source-prerequisites ?
Anonymous This solution works! Thank you
All,
This seems like a poor solution in my opinion. I can connect via odbc directly to the data source, with PostgreSQL driver installed, without the need for this certificate issue.
Simply create a system DSN in your 64 ODBC driver with the proper connection information. Once your system DSN is setup correctly, you can use the ODBC connector in power bi to connect to the data source using the system DSN.
Much more straightforward.
It doesnt make sense that my access application can access my PostgreSQL server, but PowerBI cant? Seems like a cop out to me,
I am having a hard time creating a New Data Source to SQL Server? any tips there?
Whether I try connecting with Windows NT or with SQL server authentication I get the following error message:
---------------------------
Microsoft SQL Server Login
---------------------------
Connection failed:
SQLState: '01000'
SQL Server Error: 53
[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionOpen (Connect()).
Connection failed:
SQLState: '08001'
SQL Server Error: 17
[Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied.---------------------------
OK
---------------------------Thanks
I'd recommend starting new thread. Rather than tacking onto someone else's question, which isn't direcly related to your issue.
At any rate, you should give more info.
Specify what SQL Server (MS SQL version, is it Express?) you are trying to connect to.
If you are using alias for the connection? Try using IP address suffixed by port# to test.
Are you able to connect to it using SQL Management Studio remotely? etc etc.
I am experiencing a similar problem with connecting to Postgres, Error "This connector requires one or more additional components to be installed before it can be used" appears while trying to setup a connection to Postgres. Error continues even after installing the Npgsql-4.0.3.. I am still able to connect using ODBC but i do not prefer to use the ODBC.
Any one managed to make this working ?
Thanks for your response, Sad to know that MS was not able to offer you the solution.
Same issue.
I installed Npgsql via
Register-PackageSource -Name nuget.org -Location https://www.nuget.org/api/v2 -ProviderName NuGet Install-Package Npgsql -Verbose
Restarted system, without effects. I still get the error "this connector requires one or more additional components to be installed before it can be used", just after choosing PostgreSQL data type.
With odbc works without problems but can I update PowerBI Service via Power BI Gateway using ODBC?
Try going through steps outlined in link.
Personally, I wouldnt use the PostGRE SQL connector. I would create a custom ODBC connection using the typical connection protocols for PostGRE SQL, and then simply use the ODBC connection method within PowerBI to connect to your data source. This bypasses the PostGRE SQL errors.
