When i am running my any application it gives this error in androdi studio. please help
null
java.lang.NullPointerException
at javax.swing.plaf.basic.BasicComboBoxUI.getMinimumSize(BasicComboBoxUI.java:934)
at javax.swing.plaf.basic.BasicComboBoxUI.getPreferredSize(BasicComboBoxUI.java:911)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1661)
at com.intellij.openapi.ui.FixedSizeButton.getPreferredSize(FixedSizeButton.java:89)
at com.intellij.openapi.ui.FixedSizeButton.getMinimumSize(FixedSizeButton.java:80)
at java.awt.FlowLayout.minimumLayoutSize(FlowLayout.java:463)
at java.awt.Container.minimumSize(Container.java:1840)
at java.awt.Container.getMinimumSize(Container.java:1825)
at javax.swing.JComponent.getMinimumSize(JComponent.java:1745)
at java.awt.BorderLayout.minimumLayoutSize(BorderLayout.java:653)
at java.awt.Container.minimumSize(Container.java:1840)
at java.awt.Container.getMinimumSize(Container.java:1825)
at javax.swing.JComponent.getMinimumSize(JComponent.java:1745)
at com.android.tools.idea.run.AvdComboBox.<init>(AvdComboBox.java:81)
at com.android.tools.idea.run.ExtendedDeviceChooserDialog$2.<init>(ExtendedDeviceChooserDialog.java:92)
at com.android.tools.idea.run.ExtendedDeviceChooserDialog.<init>(ExtendedDeviceChooserDialog.java:92)
at com.android.tools.idea.run.ManualTargetChooser.getTarget(ManualTargetChooser.java:54)
at com.android.tools.idea.run.editor.ShowChooserTarget.showPrompt(ShowChooserTarget.java:97)
at com.android.tools.idea.run.AndroidRunConfigurationBase.getState(AndroidRunConfigurationBase.java:267)
at com.intellij.execution.runners.ExecutionEnvironment.getState(ExecutionEnvironment.java:201)
at com.intellij.execution.runners.BaseProgramRunner.execute(BaseProgramRunner.java:58)
at com.intellij.execution.runners.GenericProgramRunner.execute(GenericProgramRunner.java:31)
at com.intellij.execution.runners.BaseProgramRunner.execute(BaseProgramRunner.java:53)
at com.intellij.execution.runners.GenericProgramRunner.execute(GenericProgramRunner.java:31)
at com.intellij.execution.ProgramRunnerUtil.executeConfiguration(ProgramRunnerUtil.java:94)
at com.intellij.execution.impl.ExecutionManagerImpl.start(ExecutionManagerImpl.java:396)
at com.intellij.execution.impl.ExecutionManagerImpl.access$400(ExecutionManagerImpl.java:61)
at com.intellij.execution.impl.ExecutionManagerImpl$5.run(ExecutionManagerImpl.java:384)
at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
at com.intellij.util.Alarm$Request$1.run(Alarm.java:351)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:332)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:745)
at java.awt.EventQueue.access$300(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:706)
at java.awt.EventQueue$3.run(EventQueue.java:704)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:715)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:734)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:569)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:382)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
