Question #193682 on HIPL changed: https://answers.launchpad.net/hipl/+question/193682 changyou xing gave more information on the question: We followed your instruction, but the system prints error "error 20 at 0 depth lookup:unable to get local issuer certificate", and we use debug mode to test the HIPL. which gives the same error. The generation of ca- root-cert.pem and host-cert.der is followed the document, we are wondering what's the problem? Thank you. -- You received this question notification because you are a member of HIPL core team, which is an answer contact for HIPL.