Once in a while workspaces in WID fail to get runtime environment, even when everything looks correct. Going into project facets and clicking on runtimes would show the problem of unresolved WPS runtime environment.
Most of the time if you create a new workspace, it would solve the problem, just create a new workspace and import projects again.
Each workspace stores runtime information in .metadata folder ...
\.metadata\.plugins\org.eclipse.core.runtime\.settings\org.eclipse.wst.server.core.prefs file keeps the runtime information.
Most of the time if you create a new workspace, it would solve the problem, just create a new workspace and import projects again.
Each workspace stores runtime information in .metadata folder ...
