There are no resources that can be added or removed from the server

Some time would like to deploy an ear file to WAS (Web Application Server) as usual. But Eclipse fail to find your EAR and it show an alert like this :

 There are no resources that can be added or removed from the server   

the solution is that your project needs to have a Eclipse Dynamic Web Module facet. 

1. right click on project and click properties
2. Go to Project Facet and Select dynamic web module and click apply.
3. go to tomcat and click add/remove