Eclipse Community Forums: TMF (Xtext) » Error in running workflow

Help

Home

Home » Modeling » TMF (Xtext) » Error in running workflow(Error in running workflow)

Show: Today's Messages :: Show Polls :: Message Navigator

Error in running workflow [message #1829425]

Fri, 03 July 2020 07:13

Virag Purnam

Messages: 142
Registered: June 2014

Senior Member

Hi,

I am getting below mentioned error, during run of mwe2 workflow.
Same grammar was not giving error earlier.

error(10):  internal error: org.antlr.tool.Grammar.createLookaheadDFA(Grammar.java:1279): could not even do k=1 for decision 217; reason: timed out

How can I resolve this error ?

Thanks and regards,
Virag

Report message to a moderator

Re: Error in running workflow [message #1829431 is a reply to message #1829425]

Fri, 03 July 2020 09:09

Virag Purnam

Messages: 142
Registered: June 2014

Senior Member

Hi,

Problem got resolved.
There was an issue with grammar.

Thanks and regards,
Virag

Report message to a moderator

Re: Error in running workflow [message #1829482 is a reply to message #1829431]

Sat, 04 July 2020 19:02

Ed Willink

Messages: 7670
Registered: July 2009

Senior Member

Hi

Resolved for now. However it may reoccur for larger grammars. It is useful to know that backtrack, classSplitting and conversiontimeout parameters can be configured.

fragment = parser.antlr.XtextAntlrGeneratorFragment {
options = { backtrack = true classSplitting = true }
antlrParam = "-Xconversiontimeout" antlrParam = "10000"
}

With the old infrastructure the above has to be repeated for the XtextAntlrUiGeneratorFragment. With the new infrastructure the new XtextAntlrGeneratorFragment seems sufficient.

Regards

Ed Willink

Report message to a moderator

Previous Topic:	Providing quick fixes when IMarker are not created using Xtext's API
Next Topic:	Pb with recursive rule invocation

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Thu Sep 19 17:16:29 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter