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[XPAND] Couldn't find Model [message #503329]

Fri, 11 December 2009 17:20

Wolf Bublitz

Messages: 3
Registered: December 2009

Junior Member

Hi,

I am new to the XText->Xpand Modeling Mechanism and after doing the tutorial from the XText Documentation I am trying to create a small DSL on my own.

This is my current XText Grammar, which works as I expected:

grammar org.xtext.Mathset with org.eclipse.xtext.common.Terminals

generate mathset "http://www.xtext.org/Mathset"

Model:
	set1=Set "+" set2=Set;
	
Set:
	"{}" | "{" (elements+=Element)+ "}";
		
Element:
	value=INT;

My Template looks like:

«IMPORT mathset»;

«DEFINE main FOR Model»
«ENDDEFINE»

But "Model" is red underlined with the message "Couldn't find Model".
Sad

Can someone please help me?

Thanks!

[Updated on: Fri, 11 December 2009 17:21]

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Re: [XPAND] Couldn't find Model [message #503332 is a reply to message #503329]

Fri, 11 December 2009 17:58

Christian Dietrich

Messages: 14111
Registered: July 2009

Senior Member

Hello, vou get this error message cant find you Metamodel and therefore cannot verify that there is a MetaClass "mathset::Model". to tell Xpand where to find / search your MetaModel you have to do only two things

(1) tell xpand what kind of metamodel you are using. In Your case this would be EMF Metamodels (In your projects Properties go to the Xtend/Xpand section and verify if EMF MetaModels is selected (should be default)

(2) the (generated) .ecore file has to be on the classpath of your xpand project. therefor add a plugin-dependeny to your generator projects manifest file.

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: [XPAND] Couldn't find Model [message #503371 is a reply to message #503332]

Sat, 12 December 2009 13:59

Wolf Bublitz

Messages: 3
Registered: December 2009

Junior Member

Hi,

first of all thanks for your reply.

In my generator-project's properties there is no "EMF MetaModels" to choose, it looks like this:

http:// picasaweb.google.de/lh/photo/k4U8r6960FvXYgKm_TFA-A?feat=dir ectlink

The manifest's plugin list looks like this:

http:// picasaweb.google.de/lh/photo/gg6N7lBt9mK-Dvr3GIInNA?feat=dir ectlink

Can you please tell me where to find this .ecore file?

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Re: [XPAND] Couldn't find Model [message #503378 is a reply to message #503371]

Sat, 12 December 2009 15:32

Christian Dietrich

Messages: 14111
Registered: July 2009

Senior Member

hi,

if you cannot see emf metsmodels in the configuration your xpand installation seems to be incomplete. to you use a distribution as you can get it e.g. from here. the ecore file is generated by the xtext worklow e.g. to /org.xtext.mathset/src-gen/org/xtext/Mathset.ecore

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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