I finally was able to build and debug the android platform with this tutorial. I imported my project in eclipse, and afterwards installed ADT. Then I converted my imported p
The solution to this problem is to setup some System Environment Variables.
Right click on "My Computer" and select "Properties"
Select the "Advanced" tab
Click the "Environment Variables" button
Under "System Variables" find "Path", select is and then click "edit"
Scroll to the far right, now you need to add two paths, "C:\Documents and Settings\YOUR_USER_NAME\.android\avd" and "C:\Program Files\Java\jdk1.7.0_01\bin", you need to add a ; at the end of each path. Click "Ok" when done.
Select the "New" button, for variable name enter "ANDROID_SDK_HOME", and for variable value enter your SDK install path (Default is "C:\Program Files\Android\android-sdk") and then click "Ok"
Restart Eclipse and it should work!