Earl-chen

Thank you very much for your help. @Tomcli I tried the method you said, and also tried to use the command` helm delete $(helm list | grep ffdl | awk...

@Tomcli Thank you for your prompt reply. Unfortunately, I missed KubeDNS. KubeDNS is not installed. I install it now, and then give you feedback.

I solved the problem using the following method: ``` $ sudo apt-get update $ sudo apt-get install gdebi $ wget http://archive.ubuntu.com/ubuntu/pool/main/p/protobuf/libprotobuf9v5_2.6.1-1.3_amd64.deb $ sudo gdebi ./libprotobuf9v5_2.6.1-1.3_amd64.deb ``` The solution comes from...