Android Studio Start Failed


I've just installed android studio. For the first time when I run
that after a short while (after showing a loading bar), It shows me
this error. So I searched in Internet and I did Everything I
could,(downloading the last version on Java, re-installing the Program
and run it for the first time as administrator, Adding the system
variable JAVA_HOME and etc.)but still it shows me a
dialog with this information:



Internal error. Please report to
https://code.google.com/p/android/issues

java.lang.RuntimeException: java.lang.NullPointerException
at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:178)
at com.intellij.idea.MainImpl$1$1$1.run(MainImpl.java:52)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at
com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:362)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: java.lang.NullPointerException
at
com.android.tools.idea.welcome.AndroidVirtualDevice.<init>(AndroidVirtualDevice.java:81)
at
com.android.tools.idea.welcome.InstallComponentsPath.createComponentTree(InstallComponentsPath.java:89)
at
com.android.tools.idea.welcome.InstallComponentsPath.init(InstallComponentsPath.java:215)
at
com.android.tools.idea.wizard.DynamicWizardPath.attachToWizard(DynamicWizardPath.java:97)
at
com.android.tools.idea.wizard.DynamicWizard.addPath(DynamicWizard.java:233)
at
com.android.tools.idea.welcome.FirstRunWizard.init(FirstRunWizard.java:75)
at
com.android.tools.idea.welcome.FirstRunWizardHost.setupWizard(FirstRunWizardHost.java:100)
at
com.android.tools.idea.welcome.FirstRunWizardHost.getWelcomePanel(FirstRunWizardHost.java:92)
at
com.intellij.openapi.wm.impl.welcomeScreen.WelcomeFrame.<init>(WelcomeFrame.java:68)
at
com.intellij.openapi.wm.impl.welcomeScreen.WelcomeFrame.showNow(WelcomeFrame.java:173)
at
com.intellij.idea.IdeaApplication$IdeStarter.main(IdeaApplication.java:302)
at com.intellij.idea.IdeaApplication.run(IdeaApplication.java:172)
... 16 more


What should I do now only for running Android Studio?


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