@NotNull method com/jetbrains/php/PhpIndex.getInstance must not return null: @NotNull method com/jetbrains/php/PhpIndex.getInstance must not return null java.lang.IllegalStateException: @NotNull method com/jetbrains/php/PhpIndex.getInstance must not return null at com.jetbrains.php.PhpIndex.getInstance(PhpIndex.java:34) at fr.adrienbrault.idea.symfony2plugin.TwigHelper.getTwigNamespaces(TwigHelper.java:189) at fr.adrienbrault.idea.symfony2plugin.ui.TwigSettingsForm.attachItems(TwigSettingsForm.java:90) at fr.adrienbrault.idea.symfony2plugin.ui.TwigSettingsForm.<init>(TwigSettingsForm.java:58) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:193) at org.picocontainer.defaults.ConstructorInjectionComponentAdapter$1.run(ConstructorInjectionComponentAdapter.java:220) at org.picocontainer.defaults.ThreadLocalCyclicDependencyGuard.observe(ThreadLocalCyclicDependencyGuard.java:53) at org.picocontainer.defaults.ConstructorInjectionComponentAdapter.getComponentInstance(ConstructorInjectionComponentAdapter.java:248) at com.intellij.openapi.extensions.AbstractExtensionPointBean.instantiate(AbstractExtensionPointBean.java:75) at com.intellij.openapi.options.ConfigurableEP$NewInstanceFactory.create(ConfigurableEP.java:192) at com.intellij.openapi.options.ConfigurableEP$NewInstanceFactory.create(ConfigurableEP.java:190) at com.intellij.openapi.options.ConfigurableEP.createConfigurable(ConfigurableEP.java:150) at com.intellij.openapi.options.ex.ConfigurableWrapper.getConfigurable(ConfigurableWrapper.java:87) at com.intellij.openapi.options.ex.ConfigurableWrapper.createComponent(ConfigurableWrapper.java:111) at com.intellij.openapi.options.newEditor.OptionsEditor$Simple.<init>(OptionsEditor.java:1303) at com.intellij.openapi.options.newEditor.OptionsEditor.b(OptionsEditor.java:461) at com.intellij.openapi.options.newEditor.OptionsEditor.access$2500(OptionsEditor.java:68) at com.intellij.openapi.options.newEditor.OptionsEditor$9$1$1.run(OptionsEditor.java:430) at com.intellij.openapi.application.impl.ApplicationImpl.runEdtSafeAction(ApplicationImpl.java:1098) at com.intellij.openapi.options.newEditor.OptionsEditor$9$1.run(OptionsEditor.java:423) at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:908) at com.intellij.openapi.options.newEditor.OptionsEditor$9.run(OptionsEditor.java:420) at com.intellij.openapi.application.impl.ApplicationImpl$8.run(ApplicationImpl.java:420) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:150)