Could not find a handler capable of installing the add-on jira-greenhopper-plugin-6.3.3.jar

Question

Could not find a handler capable of installing the add-on at jira-greenhopper-plugin-6.3.3.jar. Check that the file is a valid add-on.

I just upgrade my evaluation JIRA v5.2 to v6.1.1 on Windows server. I can't directly connect to the marketplace due to the firewall, I believe. So I downloaded the jar file. I am getting this error when I was trying to upload the add-on. Now I can't continue.

Can anyone help me?

Thanks

Jirong

Jirong Hu · Answer

I tried again two minutes ago, this time worked. Tried many times before. Thanks a lot.

John Garcia · Answer

Jirong,

Generally when I run into that error, it means that the JAR download was interrupted or corrupted. Please re-download the file and try again.