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Could not find unit 'platform:/resource [message #1805700]

Mon, 22 April 2019 07:28

Ranjith S Nair

Messages: 3
Registered: January 2019

Junior Member

Hi Team,

I am building an eclipse plugin that will transform my metamodel to RDS metamodel. But I am getting below exception.

Diagnostic ERROR source=org.eclipse.m2m.qvt.oml.execution code=200: Could not find unit 'platform:/resource/sql.metamodel.qvto/transforms/SealToSql.qvto'

It started after converting the project to Maven
When I create a new QVTO plugin project i am getting qvto file as file:/.... but when i convert the project to maven nothing is working.

I tried both standalone and running from eclipse instance, my requirement is running from eclipse instance.

I have attached the plugin.xml file also i want to transform SealToSql.qvto file from my acceleo project

Sample code is attached.

Attachment: Generate_Acceleo.java
(Size: 34.85KB, Downloaded 66 times)
Attachment: plugin.xml
(Size: 0.28KB, Downloaded 83 times)
Attachment: SealToSql.qvto
(Size: 6.89KB, Downloaded 52 times)

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Re: Could not find unit 'platform:/resource [message #1805701 is a reply to message #1805700]

Mon, 22 April 2019 08:36

Ed Willink

Messages: 7129
Registered: July 2009

Senior Member

Hi

"Maven". Sorry, there is no way I am going to look at anything that does not come with a complete project repro and M2E launch configuration.

My very strong suspicion is that the file paths under Maven are different and consequently files are not consistently resolved. Combined use of "file:" and "plugin" is not usually a good idea. You should be able to debug it by ensuring that your application works as a conventional standalone application, then debugging why the files names are inconsistent in your Maven variant. It may be as simple as ensuring that your default working directory is right .... But when I migrated all the OCL, QVTd JUnit tests from Buckminster to Tycho, I had to rewrite all usage of temporary files since under Buckminster testing occurred pre-packaging allowing the pre-packaged files to mutate. Ouch! Tycho tests post-packaging so storing temporaries in plugins fails. All temporaries had to be moved into new auto-generated workspace projects. You might need to do the same to respect the integrity of Maven/Tycho. Trying to make the target/... directory tree work as part of the Eclipse platform:/... virtual tree may be too hard and fundamentally unsound.

Regards

Ed Willink

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Re: Could not find unit 'platform:/resource [message #1805738 is a reply to message #1805701]

Tue, 23 April 2019 02:24

Ranjith S Nair

Messages: 3
Registered: January 2019

Junior Member

Sorry I am not understanding anything. Why eclipse is not identifying the QVTO file unit ? How to see the exact issue ? The problem here is I have one acceleo project and a QVTO java plugin, The QVTO project is added as dependency. but still I am not able to call the QVTO file using platform URI. Somehow it is now working fine in standalone mode but when i running it from eclipse instance i am getting error.

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