'Installing Software' has encountered a problem.

[luicallo]

Hello all,

I’m having this message error at a windows environment:

The error ocurred while i tried to download an extension:

[ScottF]

Hi @luicallo and welcome to the forum.

Please take a look at both of Marvin’s posts in the thread below and see if they help you. (This issue comes up quite often!)

Help with the Extensions

Hello, I am trying to install Extensions in my work Mac. But this is the error I got: [image] Some sites could not be found. See the error log for more detail. Unable to read repository at https://update.knime.com/community-contributions/trusted/4.4/content.xml. PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Unable to read repository at https://update.knime.com/community-contributions/4.4/co…

[luicallo]

Thank you @ScottF, it seems that the problem was related to network issues that i couldn’t do much because it was on windows environment that a client provided me, i asked to the infraestructure team to check out the networking policies. After that i could download the extension in Knime without issues.