If anyone is currently facing any issues when trying to update their current version of "Android Studio" from, which ever version they are currently running to version 4.1 and they get the error below
Internal error. Please refer to https://code.google.com/p/android/issues
java.lang.NoSuchMethodError: com.intellij.ide.plugins.PluginManagerCore.loadDescriptors()[Lcom/intellij/ide/plugins/IdeaPluginDescriptorImpl;
at com.a.a.b.b.ar.a(ar.java:121)
at com.a.a.b.b.ar.a(ar.java:71)
at com.intellij.idea.MainImpl.start(MainImpl.java:19)
at com.intellij.idea.StartupUtil.startApp(StartupUtil.java:295)
at com.intellij.idea.StartupUtil.prepareApp(StartupUtil.java:238)
at com.intellij.ide.plugins.MainRunner.lambda$start$0(MainRunner.java:45)
at java.lang.Thread.run(Thread.java:748)
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JRE 1.8.0_242-release-1644-b3-6222593 amd64 by JetBrains s.r.o