GitHub VCS Root fails when trying to sign in to Github from TeamCity New VCS Root
Could not establish SSL connection with URL: https://github.com/login/oauth/access_token, error: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
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Hello,
This error seems to indicate that you are experiencing SSL issues. You probably need to install the Github certificate to the Trusted store.
Please check the following guide from our documentation:
https://www.jetbrains.com/help/teamcity/using-https-to-access-teamcity-server.html#Configuring+client+JVM+for+trusting+server+certificate
Thank you,
Guilherme