无法在Mac的终端中运行android adv

Question

我的操作系统是MacOS,我正在开发一个Android移动应用程序.我已经下载了android studio并设置了android_home环境.我已经安装了marshmallow6.0 SDK.我android avd在终端尝试并未能打开avd.

java.lang.IllegalArgumentException: Argument cannot be null
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.SWT.error(Unknown Source)
at org.eclipse.swt.widgets.Widget.error(Unknown Source)
at org.eclipse.swt.widgets.Label.setText(Unknown Source)
at com.android.sdkuilib.internal.widgets.AvdDetailsDialog.displayValue(AvdDetailsDialog.java:156)
at com.android.sdkuilib.internal.widgets.AvdDetailsDialog.createContents(AvdDetailsDialog.java:73)
at com.android.sdkuilib.ui.SwtBaseDialog.open(SwtBaseDialog.java:93)
at com.android.sdkuilib.internal.widgets.AvdSelector.onDetails(AvdSelector.java:964)
at com.android.sdkuilib.internal.widgets.AvdSelector.access$600(AvdSelector.java:86)
at com.android.sdkuilib.internal.widgets.AvdSelector$11.widgetDefaultSelected(AvdSelector.java:728)
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Display.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)
at org.eclipse.swt.widgets.Widget.notifyListeners(Unknown Source)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)
at com.android.sdkuilib.internal.repository.ui.AvdManagerWindowImpl1.open(AvdManagerWindowImpl1.java:146)
at com.android.sdkuilib.repository.AvdManagerWindow.open(AvdManagerWindow.java:94)
at com.android.sdkmanager.Main.showAvdManagerWindow(Main.java:438)
at com.android.sdkmanager.Main.doAction(Main.java:380)
at com.android.sdkmanager.Main.run(Main.java:151)
at com.android.sdkmanager.Main.main(Main.java:117)

我不知道是什么unknow source意思.我是否需要包含一些源文件？

我尝试通过android studio打开avd.但是当我打开项目时,ADV管理器是灰色的,这不允许我打开adv.我该如何解决这个问题？非常感谢.