android virtual device manager(avd) not working in latest adt v21

Question

Well, I was using Indigo with ADT v20 and everything was just fine, but I suddenly received an annoying update message to update the sdk.

When I updated the sdk, I got another issue that I need to update the adt due to the current version of the sdk not supporting the old adt. So I did and now clicking on AVD Manager shortcut or going through Windows->AVD Manager is not working. Nothing happens when I click there. Some of my friends are also facing the same problem with Win7 and Ubuntu.

I found a similar question here. But I don't know why that question is closed.

Answer 1

If you open eclipse's log file, called .log in the .metadata directory (which is in your workspace) you likely have the following exception:

!ENTRY org.eclipse.ui 4 0 2012-12-06 14:17:03.497 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at com.android.sdklib.internal.avd.AvdInfo.getDeviceName(AvdInfo.java:158) at com.android.sdkuilib.internal.repository.ui.DeviceManagerPage.fillDevices(DeviceManagerPage.java:497) at com.android.sdkuilib.internal.repository.ui.DeviceManagerPage.fillTable(DeviceManagerPage.java:357) at com.android.sdkuilib.internal.repository.ui.DeviceManagerPage.createContents(DeviceManagerPage.java:259) at com.android.sdkuilib.internal.repository.ui.DeviceManagerPage.(DeviceManagerPage.java:130)

See this link for the fix:

http://code.google.com/p/android/issues/detail?id=40400

I will warn you that they will tell you to install "Tools 21.0.1 preview 1". They seemed to have changed the name to "Android Development Tools".

I installed it and it works for me now.