Intellij start up failure due to Guicy Plugin installation - intellij-idea

Question

I tried to install the plugin from Intellij UI by picking the guiceyIDEA.jar file. (I feel this was wrong)
I also copied the unzipped GuiceyIDEA folder to /Applications/IntelliJ IDEA CE.app/Contents/plugins
However now, I am getting this exception while starting intellij. How do I undo my changes without re-installing Intellij?
Internal error. Please report to http://jb.gg/ide/critical-startup-errors
java.lang.RuntimeException: com.intellij.ide.plugins.PluginManager$StartupAbortedException: Fatal error initializing 'com.intellij.openapi.actionSystem.ActionManager'
at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:210)
at com.intellij.idea.MainImpl$1.lambda$null$0(MainImpl.java:49)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:343)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: com.intellij.ide.plugins.PluginManager$StartupAbortedException: Fatal error initializing 'com.intellij.openapi.actionSystem.ActionManager'
at com.intellij.ide.plugins.PluginManager.handleComponentError(PluginManager.java:253)
at com.intellij.openapi.components.impl.PlatformComponentManagerImpl.handleInitComponentError(PlatformComponentManagerImpl.java:43)
at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:509)
at com.intellij.util.pico.DefaultPicoContainer.getLocalInstance(DefaultPicoContainer.java:239)
at com.intellij.util.pico.DefaultPicoContainer.getComponentInstance(DefaultPicoContainer.java:206)
at org.picocontainer.defaults.BasicComponentParameter.resolveInstance(BasicComponentParameter.java:77)
at org.picocontainer.defaults.ComponentParameter.resolveInstance(ComponentParameter.java:114)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getConstructorArguments(CachingConstructorInjectionComponentAdapter.java:128)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.doGetComponentInstance(CachingConstructorInjectionComponentAdapter.java:100)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.instantiateGuarded(CachingConstructorInjectionComponentAdapter.java:80)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:63)
at com.intellij.openapi.components.impl.ServiceManagerImpl$MyComponentAdapter.getComponentInstance(ServiceManagerImpl.java:228)
at com.intellij.util.pico.DefaultPicoContainer.getLocalInstance(DefaultPicoContainer.java:239)
at com.intellij.util.pico.DefaultPicoContainer.getComponentInstance(DefaultPicoContainer.java:206)
at org.picocontainer.defaults.BasicComponentParameter.resolveInstance(BasicComponentParameter.java:77)
at org.picocontainer.defaults.ComponentParameter.resolveInstance(ComponentParameter.java:114)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getConstructorArguments(CachingConstructorInjectionComponentAdapter.java:128)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.doGetComponentInstance(CachingConstructorInjectionComponentAdapter.java:100)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.instantiateGuarded(CachingConstructorInjectionComponentAdapter.java:80)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:63)
at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:468)
at com.intellij.openapi.components.impl.ComponentManagerImpl.createComponents(ComponentManagerImpl.java:120)
at com.intellij.openapi.application.impl.ApplicationImpl.lambda$createComponents$8(ApplicationImpl.java:466)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:176)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:556)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:501)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:66)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:163)
at com.intellij.openapi.application.impl.ApplicationImpl.createComponents(ApplicationImpl.java:473)
at com.intellij.openapi.components.impl.ComponentManagerImpl.init(ComponentManagerImpl.java:104)
at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:425)
at com.intellij.openapi.application.impl.ApplicationImpl.load(ApplicationImpl.java:411)
at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:203)
... 16 more
Caused by: java.lang.ExceptionInInitializerError
at com.sixrr.guiceyidea.actions.GuiceActionGroup.<init>(GuiceActionGroup.java:15)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:193)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.doGetComponentInstance(CachingConstructorInjectionComponentAdapter.java:103)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.instantiateGuarded(CachingConstructorInjectionComponentAdapter.java:80)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:63)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.processGroupElement(ActionManagerImpl.java:666)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.processActionsChildElement(ActionManagerImpl.java:964)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.registerPluginActions(ActionManagerImpl.java:464)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.<init>(ActionManagerImpl.java:143)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:193)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.doGetComponentInstance(CachingConstructorInjectionComponentAdapter.java:103)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.instantiateGuarded(CachingConstructorInjectionComponentAdapter.java:80)
at com.intellij.util.pico.CachingConstructorInjectionComponentAdapter.getComponentInstance(CachingConstructorInjectionComponentAdapter.java:63)
at com.intellij.openapi.components.impl.ComponentManagerImpl$ComponentConfigComponentAdapter.getComponentInstance(ComponentManagerImpl.java:468)
... 46 more
Caused by: java.util.MissingResourceException: Can't find bundle for base name com.sixrr.guiceyidea.GuiceyIDEABundle, locale en_US
at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1564)
at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1387)
at java.util.ResourceBundle.getBundle(ResourceBundle.java:773)
at com.sixrr.guiceyidea.b.<clinit>(b.java:3)
... 68 more

Answer 1

Mac:
Go to /Users/<username>/Library/Application Support/IdeaIC<version>
and delete the .guicy plugin jar file
rm guiceyIDEA.jar
Windows:
Delete the plugin folder from:
C:\Users\<username>\AppData\Roaming\JetBrains\<IDE>\plugins\<plugin_name>
Where:
<username> is the username where the IDE is installed
<IDE> is the IDE name, for example: WebStorm2022.1 or IntelliJIdea2020.1
<plugin_name> is the name of the plugin that is causing the problem