"User error operator MCIO (multiple_color_image_opener) cannot be executed"

good afternoon

I have a problem with  my project and i cannot understand why?

my code is :

RapidMiner.setExecutionMode(RapidMiner.ExecutionMode.COMMAND_LINE);
RapidMiner.init();

Process location = new Process(new File("C:\\Users\\john\\.RapidMiner\\repositories\\Local Repository\\processes\\project_solar_parks.rmp"));

Operator a = location.getOperator("MCIO");

a.setPairParameter("images", "photovoltaika", save_image);

IOContainer ioResult = location.run();
IOObject result = ioResult.getElementAt(0);

and the error is :

com.rapidminer.operator.UserError: The dummy operator MCIO (replacing imageprocessing:multiple_color_image_opener) cannot be executed.
at com.rapidminer.operator.DummyOperator.doWork(DummyOperator.java:94)
at com.rapidminer.operator.Operator.execute(Operator.java:1004)
at com.rapidminer.operator.execution.SimpleUnitExecutor.execute(SimpleUnitExecutor.java:77)
at com.rapidminer.operator.ExecutionUnit$3.run(ExecutionUnit.java:812)
at com.rapidminer.operator.ExecutionUnit$3.run(ExecutionUnit.java:807)
at java.security.AccessController.doPrivileged(Native Method)
at com.rapidminer.operator.ExecutionUnit.execute(ExecutionUnit.java:807)
at com.rapidminer.operator.OperatorChain.doWork(OperatorChain.java:428)
at com.rapidminer.operator.Operator.execute(Operator.java:1004)

can someone help me?

thanks

john