Update Android ADT Tool to 21.1.0 from 21.0.1

Question

i have updated SDK to 21.1 and how to update ADT 21.1 in old version. and when i opened my SDK it displays

This Android SDK requires Android Developer Toolkit version 21.1.0 or above. Current version is 21.0.1.2012-12-6-2-58. Please update ADT to the latest version.

any solution, Thanks in advance

Answer 1

Faced the same problem and success with following steps

1. Download the ADT Plugin zip file ADT-21.1.0.zip from http://dl.google.com/android/ADT-21.1.0.zip
2. (do not unpack it):
3. Start Eclipse, then select Help > Install New Software.
4. Click Add, in the top-right corner.
5. In the Add Repository dialog, click Archive.
6. Select the downloaded ADT-21.1.0.zip file and click OK.
7. Enter "ADT Plugin" for the name and click OK.
8. In the Available Software dialog, select the checkbox next to Developer Tools and click Next.
9. In the next window, you'll see a list of the tools to be downloaded. Click Next.
10. Read and accept the license agreements, then click Finish.
11. If you get a security warning saying that the authenticity or validity of the software can't be established, click OK.
12. When the installation completes, restart Eclipse.

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• Resource: http://developer.android.com/sdk/installing/installing-adt.html
• Section: Troubleshooting Installation

Answer 2

Go to eclipse > help > Check for updates.

It should list the latest update of adt. If it doesn't work, try this :

go to eclipse > help > Install new software

Click on add

add this url : https://dl-ssl.google.com/android/eclipse/

It will list the updates available- which should ideally be adt 21.1.0 (latest)

install the latest adt and everything should be fine.

source: Update ADT from 21.0 to 21.1 from inankupeli

Answer 3

Open Eclipse -> Help -> Check for updates

Eclipse will do the rest. Please make sure to restart Eclipse once the update is done for the changes to take effect.