public static void setWorkSpacePathVariables(IProject project, URI newPath) {
		IPathVariableManager pathMan = project.getPathVariableManager();

		//this code has been added for debuggin and needs to be removed as it will create a change listener for each call which is a really bad idea
		pathMan.addChangeListener(new IPathVariableChangeListener() {
			
			@Override
			public void pathVariableChanged(IPathVariableChangeEvent event) {
				// This method is called  after the setURIValue value below and then later again with the old value
				System.out.println(event.getVariableName());
			}
		});

		try {
			//I read the original value for debuggin reasons. Needs to be removed
			URI orgPath = pathMan.getURIValue(ArduinoConst.WORKSPACE_PATH_VARIABLE_NAME_HARDWARE_LIB);
			pathMan.setURIValue(ArduinoConst.WORKSPACE_PATH_VARIABLE_NAME_HARDWARE_LIB,newPath);
			//I read the value back for debugging to see wether it works
			URI readPath = pathMan.getURIValue(ArduinoConst.WORKSPACE_PATH_VARIABLE_NAME_HARDWARE_LIB);
			//For debugging I thow an error when the read value does not match the written value.
			if (!readPath.toString().equals(newPath.toString()))
			{
				//this has never happened
				Common.log(new Status(Status.ERROR, ArduinoConst.CORE_PLUGIN_ID, "Failed to clean the workspace path variables.",null));
			}
		} catch (CoreException e) {
			Common.log(new Status(Status.ERROR, ArduinoConst.CORE_PLUGIN_ID, "Failed to create the workspace path variables. The setup will not work properly", e));
			e.printStackTrace();
		}
	}