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Error in import models in same project [message #1748257]

Mon, 21 November 2016 15:43

Marcelo Rodrigues

Messages: 21
Registered: November 2016

Junior Member

I'm getting the following error in the PersonsHouses.emf file: Failed to load import model "Houses" and Failed to load import model "Persons" (Which are files that are in the same project). I've already looked for possible solutions on the internet and EpsilonBook but I could not find the solution.

_____________ Houses.emf____________________
package Houses;

class HouseGroup{
val House[*] houses;
}

class House{
attr String address;
}

_____________ Persons.emf____________________
package Persons;

class PersonGroup{
val Person[*] person;
}

class Person{
attr String name;
}

_____________ PersonsHouses.emf____________________

package PersonHouseRelationship;

import "Houses";
import "Persons";

class PersonHouseRelationshipGroup{
val PersonHouseRelationship[*] personHouseRelationships;
}

@exeed(label = "return self.person.name + ' ' + self.type + ' ' + self.adress; ")
class PersonHouseRelationship{
ref Persons.Person person;
ref Houses.House house;
attr PersonHouseRelationshipType type;
}

enum PersonHouseRelationshipType {
Owns;
Lets;
}

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Re: Error in import models in same project [message #1748259 is a reply to message #1748257]

Mon, 21 November 2016 15:57

Dimitris Kolovos

Messages: 2162
Registered: July 2009
Location: York, UK

Senior Member

Hi Marcelo,

You need to convert Houses.emf and Persons.emf to their Ecore equivalents (right click on them in the Project Explorer and select "Generate Ecore") and then register the two new .ecore files (right click on them and select "Register EPackages"). If you then refresh your PersonHouses.emf editor, the errors should disappear.

Cheers,
Dimitris

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Re: Error in import models in same project [message #1748264 is a reply to message #1748259]

Mon, 21 November 2016 16:04

Marcelo Rodrigues

Messages: 21
Registered: November 2016

Junior Member

I've already followed these steps (as in this tutorial: https://www.youtube.com/watch?v=nhYwJ0iEu-E) but still it's still giving an error.

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Re: Error in import models in same project [message #1748265 is a reply to message #1748264]

Mon, 21 November 2016 16:08

Marcelo Rodrigues

Messages: 21
Registered: November 2016

Junior Member

Take a look at this print of my project: https://drive.google.com/file/d/0B-VOehfmRw4dOVN2QjdlbXB6TVE/view?usp=sharing

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Re: Error in import models in same project [message #1748271 is a reply to message #1748265]

Mon, 21 November 2016 16:57

Dimitris Kolovos

Messages: 2162
Registered: July 2009
Location: York, UK

Senior Member

Hi Marcelo,

You're right. I've added "http://" to the namespace URIs of the involved metamodels (to ensure that they are not treated as relative paths) and it all seems to be working as expected now [1].

Cheers,
Dimitris

[1] https://git.eclipse.org/c/epsilon/org.eclipse.epsilon.git/tree/examples/org.eclipse.epsilon.examples.modelink.personshouses

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