The requested resource is not available. Error

I met this mistake subconsciously looking for a half-day path, and found no problem

It was later discovered whether the project name was referenced after Eclipse copied the project or the original

Used to Myeclipse,eclipse to change the not completely

Two methods:

The first kind (recommended):

Locate the project under the. Settings Folder Org.eclipse.wst.common.component Open

Change Deploy-name,java-output-path and context-root back.

And then the point comes, refresh Project (⊙﹏⊙) b

The second type:

Right-click →properties→web Project Settings and change it back.

Although the project is now ready to run

But opening org.eclipse.wst.common.component actually only changed back to Context-root.

The other is the original project name, it is better to change back

The requested resource is not available. Error