This Android SDK requires Android Developer Toolkit version .... Please update ADT to the latest version.
The problem arises:
1. This issue occurs when you open Eclipse Add SDK after you download the ADT version of Eclipse's Android SDK.
2. This issue occurs after you update ADT or update the SDK.
WORKAROUND: Ensure that ADT is consistent with the SDK version
You can choose one of the following methods:
1. Follow the prompts to update the appropriate version of ADT or SDK.
Open the Adt/about ADT menu item under Eclipse to see information about ADT, which has a version number.
The SDK opens "$SDK _root/tools/lib/plugin.prop" to view the version number.
2, modify the "$SDK _root/tools/lib/plugin.prop" version number and ADT version is the same (it is not updated ADT, you can use this method, version differences may be problematic).
Resolve Eclipse's ADT and SDK version inconsistencies