Need an Urgent help after 4.2.3 installation

[izaychik63]

My PC was upgraded and I asked for 4.2.3 installation. now I’m getting errors to update sites:

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/4.2/content.xml.

sun.security.validator.ValidatorException: 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/partner/4.2/content.xml.

sun.security.validator.ValidatorException: 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/analytics-platform/4.2/content.xml.

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Unable to read repository at http://download.nodepit.com/nodepit/4.0/content.xml.

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Unable to read repository at http://download.nodepit.com/palladian/4.1/content.xml.

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Please help to recognize the issue. I cannot install missed components.

Thank you
Igor

[natanaeldgsantos]

Hi @izaychik63

Is your PC in a corporate environment?

If so, I imagine that this may be some proxy restriction.
In this case you would have two main solutions.

1 - Configure the network user in the KNIME proxy settings at:

File> Preferences> Network Connections.

2- Download the update site in zip format and install the missings extensions.

If your working environment has limited internet access, another option for installing KNIME extensions is available. To access this additional dialog use the File → Preferences → Install / Update → Available Software Sites command. This tool has a different interface that allows update sites to be manually specified. Clicking “Add…” will allow you to either manually specify the URL of the KNIME Update Site or use the offline (.zip) version of the Update Site to customize your KNIME Analytics Platform installation. Note: It is important not to unzip the archived KNIME Update Site file prior to specifying it as an update source for KNIME.

comunity extensions zip dowload (trusted)
https://update.knime.com/community-contributions/trusted/4.2/TrustedCommunityContributions_4.2_202010271543.zip

reference:

How to install extensions from zip Archive org.knime.update.analytics-platform_3.6.0 ?

Dear KNIME’ers, I tried to install extensions by using the “Install extensions …” button in KNIME 3.6.0, however this lead to the following error messages: Some sites could not be found. See the error log for more detail. HTTP Proxy Authentication Required: http://update.knime.com/community-contributions/trusted/3.6/content.xml Proxy Authentication Required HTTP Proxy Authentication Required: http://update.knime.com/analytics-platform/3.6/compositeContent.xml Proxy Authentication Required …

If your machine is on a common network, I would only recommend that you confirm that all the correct update sites are selected at:

File> Preferences> Available Software Sites

I hope I helped you.

[gab1one]

Hi @izaychik63

The tips by @natanaeldgsantos are great and you should try them, if they don’t work you might need to import the security certificate of the ssl proxy into the JRE of the KNIME AP. Take a look at this post on how that is done:

Database with SSL

Hello, I just had a similar issue, and saw that none of these SSL user posts had been answered in the Knime Community. So here is what worked for me. I figured out how to connect Knime to my SSL database (in this case, it was a Virtual Database called Denodo... but should be similar for other databases). You have to install the public key for your database directly into your  Knime JRE environment using the Command Line / Terminal.  Note that Knime comes with it's own JRE enviroment, so th…

best,
Gabriel

[izaychik63]

Thank you, @natanaeldgsantos. I have issue with text processing which is not community part

[natanaeldgsantos]

hi @izaychik63

on the knime download site you will also have access to the zip file for update or install the native knime extensions, such as text processing.

[izaychik63]

Did you mean https://www.knime.com/downloads/download-knime , where KNIME Analytics Platform for Windows (zip archive)?

[natanaeldgsantos]

Yeah

Please Dowloads the latest version direct in this link below:
https://update.knime.org/analytics-platform/UpdateSite_latest42.zip

complete documentation of all options

KNIME Analytics Platform Installation Guide

[izaychik63]

Thank you, the download is in the progress. I forgot that I need a Palladian zip as well. Do you know how to get it?

[izaychik63]

Thank you, @natanaeldgsantos. I’ve been able to install from local sources.

[qqilihq]

The ZIP file download can be found here:

Palladian [Product] — NodePit

Follow this link to the ZIP file:

PS: I strongly advise against this whenever possible, as you will obviously not get any automated updates this way. Your issue sounds like something with your network is broken (MITM or improper certificates?!) – rather try to get this fixed!

[izaychik63]

Thank you, @qqilihq. It woks for me.