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I have installed eclipse juno and also added the plugin's of the android sdk. After installing android SDK manager, I've created a new android project, but a problem arises in R.java file. R.java doesn't open. Please give me a solution. I am new to android.

laalto
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Kalai
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3 Answers3

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Click on Project -> Build Project

Edit

  1. Remove your gen directory and bin directory
  2. Click on Project -> Clean (wait till cleaning complete)
  3. Click Project -> Build Project
Chintan Rathod
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  • i tried. but i have still error in lines corresponding R.java file and R.java not generated – Kalai Jun 18 '13 at 07:23
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Make sure you have Android SDK Build-Tools installed from the Android SDK Manager

Click this guy:

enter image description here

Then make sure the top three are all installed:

enter image description here

Ken Wolf
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Ensure the code, resources and AndroidManifest.xml do not have any problem.

First, delete the R.java file. As soon as you delete, that file should be re-generated automatically if you have enabled automatic build (Project->Build Automatically).

If that doesn't work try to clean the project by clicking on Project->Clean.

If it still doesn't work then, confirm you have android sdk build tools installed. For this, open Android SDK Manager and ensure Android SDK Build-tools has the status of Installed.

Also confirm that the ADT is up-to-date. To update ADT, in eclipse go to: Help -> Check for updates. Select the necessary entries like: Android Development Tools and update them.

Hopefully one of these solutions will solve your problems :-).

coolscitist
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  • Thank you. i made a problem on installing Android SDK Build-Tools. Now the problems are solved. – Kalai Jun 18 '13 at 10:56