Bug 108143 [Import/Export] error message does not go away when resources are selected for import
The patch for 97523 should have included code to prevent this problem, but it was overlooked. -Import an Archive or from the File System -Ensure the the Into Folder: field is empty -Uncheck all the resources to import (notice an error message appears) then check it again BUG: the error message does not go away
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardFileSystemResourceImportPage1.java
setErrorMessage(DataTransferMessages.FileImport_noneSelected);
        	return false;
        }
        
		enableButtonGroup(true);
        return true;
    }
    /**
     * Returns whether the source location conflicts
     * with the destination resource. This will occur if
     * the source is already under the destination.
     * 
     * @param sourcePath the path to check
     * @return <code>true</code> if there is a conflict, <code>false</code> if not
     */
    protected boolean sourceConflictsWithDestination(IPath sourcePath) {
        IContainer container = getSpecifiedContainer();
        if (container == null)
            return false;
        
        IPath destinationLocation = getSpecifiedContainer().getLocation();
        if (destinationLocation != null) {
            return destinationLocation.isPrefixOf(sourcePath);
        }
         
         
        return false;
    }
}