I updated the Android tools, etc from :
It is actually an i
The new update has a lot of problems the easy way is create your project from command line then import it to eclipse to do that:
Go to sdk folder for example mine is (The folder included android execute):
$ cd Program/android/adt/sdk/tools/
Get list of target:
$ ./android list
id: 1 or "android-7" Name: Android 2.1 ...
Choose one of the target in that list and put the id in this command to create android project:
$ ./android create project --target 24 --name MyFirstApp --path MyFirstApp --activity Main --package com.mrg.myfirstapp
Then it made for you. now in eclipse right click on project explorer:

5.Select this:

6.Rename project name if you want and press Finish

then it may works