NullPointerException after installing Twig Editor Feature

[dnt]

Hi

after installing the Twig Editor Feature I get the following error when
starting Eclipse:
An internal error occurred during: "Initializing PHP Tooling".
java.lang.NullPointerException

eclipse.buildId=4.5.0.I20150603-2000
java.version=1.8.0_51
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=de_DE
Framework arguments: -product org.eclipse.epp.package.php.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product
org.eclipse.epp.package.php.product

org.eclipse.core.jobs
Error
Fri Aug 14 15:09:00 CEST 2015
An internal error occurred during: "Initializing PHP Tooling".

java.lang.NullPointerException
at
org.eclipse.php.internal.core.language.LanguageModelInitializer.cleanup(LanguageModelInitializer.java:265)
at
org.eclipse.php.internal.core.PHPCorePlugin.initializeAfterLoad(PHPCorePlugin.java:456)
at
org.eclipse.php.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:29)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)


This makes all the PHP features unavailable.
The version of the Twig Editor Feature is 1.0.13.201507051640
I'm using the stable Update site http://p2.pdt-extensions.org/

What could be the reason for this error?

Regards
Dominic

[Dawid Pakuła]

This is PDT bug [1]. Has been fixed in current nightly and will be released with Mars.1 (PDT 3.6).

To avoid this check whether your php project contain in .buildpath file this entry:

<buildpathentry kind="con" path="org.eclipse.php.core.LANGUAGE"/>

[1] - https://bugs.eclipse.org/bugs/show_bug.cgi?id=470126

-- 
Dawid Pakuła
+48 795 996 064

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