Cannot deinstall or reinstall Extensions Unable to read - PKIX path building failed:

[Asensio_Dias]

Hello All,

I´m quite new in the KNIME Environment. So I´ve take over some flows from a colleague in my company. The first weeks everything runs fine.
I wanted to add a python node in my flow, but sice I´ve tried this, plus to install the extensions, something went wrong, So I decided to reinstall the application but now I´m facing this error massage.

I´m not sure what to do, so would be great if anyone can assist and help here.
short note.

I´m working in an company environment, maybe someone from the IT- can install or run this app as an administrator, to solve this issue. I would very thanksfull or additional help

BR Dominik

[mlauber71]

@Asensio_Dias welcome to the KNIME forum. You might be behind a corporate firewall and might have to use a proxy server. You can configure the use in knime:

FAQ | KNIME

If this does not work you can try an offline installation of extensions

5.2.3 Failure to install Extensions...

@nickbissett have you tried an ‘offline’ installation of extensions from a local (zip) repository? https://docs.knime.com/latest/analytics_platform_installation_guide/index.html#_adding_local_update_sites If you are trying to install Python based extensions on a machine behind a firewall there might be additional steps necessary:

[Asensio_Dias]

Thank you for you help here.
Unfortunatly both ways, are didn´t work.

I´m not sure why that happend, but maybe someonfr from our IT support colleagues can help in this case.

BR Dominik

[steffen_KNIME]

Hi Dominik @Asensio_Dias,

did you already try following this post?

HTTPS GET Request to MISP - Error: PKIX path building failed

Or if you’re on Windows, try appending these two parameters to the end of your knime.ini: -Djavax.net.ssl.trustStore=NONE -Djavax.net.ssl.trustStoreType=WINDOWS-ROOT Details and Mac, see the thread here: Kind regards Marvin

Thanks
Steffen