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Error on model to text transformation in Acceleo [message #1807266]

Mon, 27 May 2019 09:35

Mohammad Inayatullah

Messages: 21
Registered: May 2019

Junior Member

I am beginner in Acceleo usage. i have written the bellow transformation code

[comment encoding = UTF-8 /]
[module generate('http://www.eclipse.org/uml2/5.0.0/UML')]

[template public generateElement(m : Model)]
[comment @main/]
[file (m.name, false, 'UTF-8')]

[m.name/]
Let me type some free text

[/file]
[/template]

When i run this i am getting the following error
"An exception occurred while dispatching debug events."

Exception stack track is

java.lang.NullPointerException
at org.eclipse.acceleo.internal.ide.ui.debug.model.AcceleoProcess.getAttribute(AcceleoProcess.java:56)
at org.eclipse.jdt.internal.launching.LaunchingPlugin.deleteProcessTempFiles(LaunchingPlugin.java:1211)
at org.eclipse.jdt.internal.launching.LaunchingPlugin.handleDebugEvents(LaunchingPlugin.java:1203)
at org.eclipse.debug.core.DebugPlugin$EventNotifier.run(DebugPlugin.java:1137)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.debug.core.DebugPlugin$EventNotifier.dispatch(DebugPlugin.java:1171)
at org.eclipse.debug.core.DebugPlugin$EventDispatchJob.run(DebugPlugin.java:444)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

index.php/fa/35640/0/

Can any on please guide me that how can i resolve this..

Thanks

Attachment: Error.PNG
(Size: 125.69KB, Downloaded 385 times)

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Re: Error on model to text transformation in Acceleo [message #1807291 is a reply to message #1807266]

Mon, 27 May 2019 14:47

Ed Willink

Messages: 7625
Registered: July 2009

Senior Member

Hi

Without a repro, it's hard to tell. I might guess that m.name is null, which might be because you didn't read the comments about initializing UML correctly in the generated main.

Try following a tutorial.

Regards

Ed Willink

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Re: Error on model to text transformation in Acceleo [message #1807306 is a reply to message #1807291]

Mon, 27 May 2019 22:49

Mohammad Inayatullah

Messages: 21
Registered: May 2019

Junior Member

Thanks for your quick response.

I have removed the m.name but still the issue is existing.

index.php/fa/35645/0/

Can you please suggest me some good tutorial.

Thanks

Attachment: Error-2.PNG
(Size: 104.13KB, Downloaded 355 times)

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Re: Error on model to text transformation in Acceleo [message #1807315 is a reply to message #1807306]

Tue, 28 May 2019 04:47

Ed Willink

Messages: 7625
Registered: July 2009

Senior Member

Hi

Have you tried Googling "Acceleo tutorial"?

Regards

Ed Willink

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Re: Error on model to text transformation in Acceleo [message #1807357 is a reply to message #1807315]

Tue, 28 May 2019 13:09

Mohammad Inayatullah

Messages: 21
Registered: May 2019

Junior Member

I am following this tutorial

https://www.youtube.com/watch?v=42jkrOWA9RE&t=155s

but as for as i am guessing the issue is in configuration of eclipse.

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Re: Error on model to text transformation in Acceleo [message #1807363 is a reply to message #1807357]

Tue, 28 May 2019 14:59

Ed Willink

Messages: 7625
Registered: July 2009

Senior Member

Hi

Good luck with YouTube. Sometimes it can be useful for DIY difficulties but not for software. Read a real tutorial.

Regards

Ed Willink

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Re: Error on model to text transformation in Acceleo [message #1860047 is a reply to message #1807363]

Thu, 13 July 2023 18:14

Ayoub Ayoub

Messages: 1
Registered: July 2023

Junior Member

Hi Mohammad Inayatullah,

I saw that you fixed your problem, could you tell me please how you did it because I have the same problem.

Regards.
Ayoub.

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