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I tried to set up a new eclipse installation including the android sdk and adt plugin. The installation of all parts complete without errors. After setting the sdk path withing eclipse this error showed up:
Failed to get the required ADT version number from the SDK.
The Android Developer Toolkit may not work properly.
This shows up every time I start eclipse. I didn't found a solution yet for fixing this error and I don't yet have a clue where this error comes from.
Further system information:
OS: Xubuntu 14.04
Eclipse Helios
Android SDK Tools: Rev. 23.0.2
Android SDK Build Tools: Rev. 20
remove the existing adt plugin and re-install it. Please follow these instructions Installing the Eclipse Plugin