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XText Server Crashes with VS Code Extension, How to Debug? [message #1796120]

Fri, 05 October 2018 13:13

Mehmetcan Sinir

Messages: 55
Registered: September 2018

Member

Hi I built an existing Eclipse Plugin built with Xtext into a VS-Code Extension

I reused a lot of code (the complete DSL language + generators)

I used the following project setup:

https://blogs.itemis.com/en/integrating-xtext-language-support-in-visual-studio-code?success=true

When I start the VS-Code through

gradle startCode

, the language server is successfully generated and a new instance of VS Code opens.

However I get the following output from Xtext-Server:

Exception: com.google.inject.internal.util.$ComputationException thrown from the UncaughtExceptionHandler in thread "main"
[Info  - 3:12:26 PM] Connection to server got closed. Server will restart.

Now how can I debug my extension so that I will get to the source of this Problem?

Thank you

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Re: XText Server Crashes with VS Code Extension, How to Debug? [message #1796123 is a reply to message #1796120]

Fri, 05 October 2018 14:00

Christian Dietrich

Messages: 14297
Registered: July 2009

Senior Member

I'd recommend you to write the extension in socket mode and start the server in socket mode from eclipse as debug
You can find a old example here
https://github.com/itemis/xtext-languageserver-example/blob/master/vscode-extension/src/extension.ts
And for starting
https://github.com/itemis/xtext-languageserver-example/blob/master/org.xtext.example.mydsl.ide/src/org/xtext/example/mydsl/ide/RunServer.java

Alternatively you can modify your launch script that is used in the client to start java with remote debugging and then connect with the normal remote debugging feature eclipse offers

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: XText Server Crashes with VS Code Extension, How to Debug? [message #1796125 is a reply to message #1796123]

Fri, 05 October 2018 14:10

Mehmetcan Sinir

Messages: 55
Registered: September 2018

Member

thanks I am doing that now

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Re: XText Server Crashes with VS Code Extension, How to Debug? [message #1796203 is a reply to message #1796125]

Mon, 08 October 2018 09:24

Mehmetcan Sinir

Messages: 55
Registered: September 2018

Member

@Christian

I debugged it with the websocket. I am getting an error from google injector, that the implementation of a certain generator is not bound. However, it is bound in the RuntimeModule class.

Not sure how I can fix this problem

@Edit

Sorry now I know why I am getting the error, in any case, debugging with the websocket works!

[Updated on: Mon, 08 October 2018 09:38]

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