Error content:

15:07:50,724 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([("deployment" => "MESwell.ear")]) 
- failure description: "WFLYCTL0212: Duplicate resource [(\"deployment\" => \"MESwell.ear\")]"

15:07:50,728 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.

 

Error reporting scenario:

This error occurs when I start it normally for the first time, and then turn it off. When I start it for the second time, it will fail to start. Many answers were searched on the Internet, but they failed. Later, I found this answer:

[wfcore-495] wfly won’t startup due to “wflyctl0212: duplicate resource [(\” deployment \ “= & gt; \” XXX. War \ “)] – red hat issue tracker

Through this answer, I know that it must be related to the nonstandard start-up operation of my second time. The nonstandard start-up led to the existence of the cache started last time. Then I searched wildfly how to clean up the cache.

 

Here is the Solution:

1. Find the package you put under \wildfly-10.1.0.Final\standalone\deployments\, check its startup status, and delete the files generated after the startup failure. (It seems to be fine without cleaning up)

2. Delete all files under \wildfly-10.1.0.Final\standalone\data

3、Go to \wildfly-10.1.0.Final\standalone\configuration and find your standalone.xml

Search for deployment, find a string of tags like the following generated, delete!

4. After executing the appeal operation, check whether the above three steps are not clear and clean

5. Restart your wildfly (JBoss)