This Android SDK requires Android Developer Toolkit version 20.0.0 or above

I recently encountered a bug similar to the problem when I was working on updating the ANDROID SDK , when I started eclipse. But now I just want to get back to the original development environment. So find this article, method effective!!!

Android virtual machines are installed under windows , and sometimes when you choose to update the SDK, point to android_sdk_windows_x86 in eclipse preference. A prompt such as this androidsdk requires Android Developer Toolkit version 20.0.0or above will appear, and the virtual machine cannot be turned on , which is due to the selection of updates after the the plugin.prop file under Android_sdk_windows/tools/lib is changed to a more

# Begin Plugin.prop
plugin.version=20.0.0
# End Plugin.prop

When eclipse looks at the file, it sees plugin.version=20.0.0 that the current SDK requires more than 20.00 plugins, but the current ADT Plugin has not yet been updated to version 20.0.0, but we only want to use the old plugin, the simplest way is to change the Plugin.version version information to the old version of the version number, such as the current ADT is 16.0.0. The current version of the SDK has been updated to 20.0.0, after the late update, I am prompted to update Android Developer Toolkit to 20.0.0.0 version above, while the previous lower version of the Androiddeveloper Toolkit But can not use, found only after finding the file is the problem, modify plugin.version=16.0.0 (my old Android Developer Toolkit) Save, and then restart Eclipse can be used in the former old AvD.

It is a valid method to change the file directly when the updated version is accidentally mistaken. Transferred from: http://blog.csdn.net/wh_19910525/article/details/7937971