Grails create-app unable to find valid certification path to requested target - grails

Question

I have setup grails 3.2.1. on windows JAVA_HOME and GRAILS_HOME is also set. verified by running grails -version and worked as expected.
But when issue command to create app, it always throw following error
"Error occurred running Grails CLI: unable to find valid certification path to requested target (Use --stacktrace to see the full trace)".
I tried it by disconnecting the internet and come to know its trying to connect to https://repo.grails.org
It seems that some certificates must be in JAVA_HOME/jre/lib/security/cacerts. with this thought I downloaded the SSL certificates from https://repo.grails.org by accessing the URL in browser.
same certificates imported in the JAVA_HOME/jre/lib/security/cacerts but still no change.
I could not find even a single related post over the internet.
when creating Grails app in Netbeans 8, I get the same error.
I don't know if I need any other valid certificate or there is any other problem.
Many thanks in advance for any help on this.

Answer 1

Use the "HTTP version" repository
Add the following configuration in USER_HOME/.grails/settings.groovy:
grails {
profiles {
repositories {
myRepo {
url = "http://repo.grails.org/grails/core/"
}
}
}
}

Answer 2

This problem is due to proxy server. i traced the network log. https://repo.grails.org resolves to proxy ip, I guess, because when i access the ip over htps in browser it presents me a certificate which really not in my keystore, when i add the same in my keystore an "host name mismatch error" is thrown instead of "unable to find valid certification path to requested target".
i tried to run this at my home pc and it worked though there are other issues but good to go with next step to work on Grails.
Thanks