How to fix “A deployment or retraction is already under way for the solution “*.wsp”, and only one deployment or retraction at a time is supported”
- by ybbest
I faced this issue when I try to deploy a solution and it failed initially due to SharePoint 2010 Administration service is not started. I then started the service and redeploy the solution; however I face the above issue. To fix it, you need to cancel the current deployment then redeploy the solution.
Problem:
Solution:
To fix it, you need to cancel the current solution deployment. Go to CAà System Settings àManage farm solutions and then cancel the deployment. Next, you can redeployment your solution.