Error when uploading addon

[Rajagopal]

As instructed here, 

https://developer.atlassian.com/static/connect/docs/latest/developing/cloud-installation.html

I added my plugin into atlassian marketplace. Created tokens with addon in private mode. When I upload addon using the created token, I get the error:

"The add-on failed to install. Please try again later or contact the add-on vendor."

By the way descriptor is also valid, when I tested with descriptor validation. But also I cannot upload addon. Is there any other process to get completed.

I had surfed in internet about this issue, where I came to know that the same question has been raised here:

https://community.atlassian.com/t5/Answers-Developer-Questions/Error-Adding-Addon/qaq-p/540404

But the answer here did not help us, can I get a clear solution for the issue. What's the reason for the issue, how can I solve it?

[Jake Furler]

Hi Rajagopal,

Have you managed to install the add-on without going through the atlassian marketplace? The process is described on these pages:

https://developer.atlassian.com/static/connect/docs/latest/guides/development-setup.html

https://developer.atlassian.com/static/connect/docs/latest/developing/developing-locally.html

You should try this process first before trying to install the add-on via marketplace.

Is there anything in the logs of your add-on that might be relevant? Are you using a framework (Atlassian Connect Express or Atlassian Connect Spring Boot)?

[Rajagopal]

Thanks for your reply Jake Furler.

Yes, already we have tried it in dev mode with ngrok where everything is working fine. We are facing this issue only when we deploy through market place. Do you have any idea about this issue?