unable to get system library for the project on ec

Question

I was working on an android tutorial and it wanted me to import the library from another project .The import worked and the project works correctly. But I noticed that doing that messed up several of my other projects (the ones that use Android 2.1) by apparently messing with the build path. Now instead of seeing "Google APIs [Android 2.1]" under the gen folder I see "Unable to get system library for project".

I verified the following:

I right-clicked the project and went to Properties I see that the correct Project Build Target is checked(Google APIs [Android 2.1]), but "Unable to get system library for project" is still shown above the assets folder and below gen and Android Dependencies. Cleaning all projects doesn't help.

How can I fix this problem? is there a way to fix this issue globally or do I have to do it one by one?

Answer 1

I had the same problem. Try

1. Right click on your project
2. Go to properties
3. Click the Android section
4. Select a different target api (assuming one is already selected, as mine was - otherwise, select the one you want and jump to step 9)
5. Click OK
6. Do steps 1-3 again
7. Select your original target api
8. Click OK
9. Clean and build your project

Worked for me, anyway.

Derived the solution from: "Unable to get system library for project" after I upgraded to Android SDK 2.3 and ADT 8.0

Answer 2

Borrowing from @Erhannis answer :

"
Right click on your project
Go to properties
Click the Android section
"

When I view the build target everything looked fine :

So I checked another build target , hit apply, and then re checked my original build target (Android 4.4.2) and re-hit apply. My project then compiled.

Answer 3

Right Click on Project-> Select Android tools -> Select Fix Project Properties

This did the trick for me.