Could not download npm: Could not download https://registry.npmjs.org/npm/-/npm-6.14.0.tgz: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

[shrgupta15]

Hi Team

I'm trying to build a project on my local machine using the command " mvn clean install -PautoInstallSinglePackage" and getting this error "[ERROR] Failed to execute goal com.github.eirslett:frontend-maven-plugin:1.12.0:install-node-and-npm (install node and npm) on project the digital.ui.frontend: Could not download npm: Could not download https://registry.npmjs.org/npm/-/npm-6.14.0.tgz: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target ".

I followed the below steps to resolve this issue but still getting an error. 

1. Download certificates from NodeJS site (I downloaded the whole certificate chain).
2. Locate your Java truststore "cacerts.jks" and import the certificates using the following command (unless you didn't change the password you may use the default password "changeit", be aware of the right order and start with the root certificate): keytool -import -v -trustcacerts -alias nodejs -file "<Path to downloaded certificate>" -keystore "<Path to cacerts.jks>" -keypass changeit -storepass changeit
3. Run your Maven command with additional arguments:-Djavax.net.ssl.trustStore="<Path to cacerts.jks>" -Djavax.net.ssl.trustStorePassword=changeit

Thanks, Advance

[pulkitvashisth]

Hi @shrgupta15 
Here are a few things you can go through:

1. Check the Certificate: Ensure that the certificate you’ve downloaded and imported is the root certif....

2. Correct JRE: Make sure you’re making changes to the correct Java Runtime Environment (JRE). The cacerts file should be located in the lib/security directory of your JRE.

3. Maven Options: You can try running Maven with the-Dmaven.wagon.http.ssl.insecure=true -Dmaven.wagon..... This will bypass SSL certificate validation. However, please note that this method should be used cautiously as it makes your connection insecure.

4. Proxy Settings: If you’re behind a proxy, make sure your proxy settings are correctly configured in ....

5. Environment Variables: You can also try setting the javax.net.ssl.trustStore and javax.net.ssl.trust....