the import android could not be resolved

Question

I opened a project that I had not opened in a while in Eclipse today. I was unable to compile due to some (inexplicable) errors.

import android.app.Activity;
import android.os.Bundle;
import android.view.animation.AnimationUtils;
import android.widget.ImageView;
import android.view.animation.Animation;
import android.content.Intent;

produces the following error:

the import android could not be resolved

What can I do to resolve this problem?

Answer 1

First try clean / build your project.

If the problem persists. Right click on the project -> go to properties -> go to android -> select the android version and that should work.

Hope it helps.

Answer 2

Try one of these:

• ‘Clean’ Your Eclipse Project: Go to Project > Clean in Eclipse [This seems to work for me]

• Refresh your project folder (right click on your project > refresh) Re-build your project

• Clean your builds (If using Ant or Maven – clean your builds) Recreate your project in Eclipse

• ‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)

• ‘Switch’ Workspace – then Switch back (Eg Change to Debug, then switch back to Java)

• Remove and re-add your JRE:

  1. Right Click on your project > properties
  2. Click on the Libraries tab
  3. Click on the JRE
  4. Click remove, then OK
  5. Repeat 1-3 again, but add the JRE again