Configuring ADT Plugin in Eclipse

Step 1 :

In any version of Eclipse. Start Eclipse and then select Help > Install New Software...

Step 2 :

Click Add, on the top right side. A small Add Repository Dialog will appear above the wizard.  In this Dialog enter "ADT Plugin" for the Name and the following URL for the Location:

 https://dl-ssl.google.com/android/eclipse/

 Step 3 : 

Next you will be see ‘Available Software’  dialog in th configuration wizard. In this dialog, select the checkbox next to ‘Developer Tools’ and click Next.

 

Step 4 :

 Eclipse will show the dependencies in the next window. Which is a list of the tools you selected and  to be downloaded. Click Next.

Step 5 :

Next, you will be shown the license agreements. Read and accept these license agreements, then click Finish. It will start installation of ADT plugin and its dependencies in Eclipse.

Step 6 :

 After the installation finishes, you restart Eclipse.