Eclipse Indigo - Cannot install Android ADT Plugin

Head over to Help -> Install New Software. Click on Available software sites. Delete the Android repo. Uncheck Indigo & Eclipse updates & recheck them. Now head back to Help -> Check for updates. Once done, add the Android repo again. Accept the license & you should be good to go.

(Had to do the same yesterday after getting Indigo)

I had the same problem. This helped for me:

Go to Help->Install Software Click on "Available Software Sites" Click on Add: Name: "Helios" Location: "http://download.eclipse.org/releases/helios" Try to install Android Development Tools

I got around the org.eclipse.wst.xml.core 0.0.0 issue by taking the following steps:

Go to help

Install New Software: Add Name: Indigo Location: "http://download.eclipse.org/releases/indigo"

Select 'WST Server Adapters' under 'Web, XML, Java,..." (last name in list)

Accept licensing agreement

Restart Eclipse

Resume procedure to install ADT

It worked for me, hope it does for you too.

I had the same issue. The other solutions here didn't work for me because I couldn't even see the Indigo / Helios update repos. The problem was that Eclipse was in Program Files, but I wasn't running it as an administrator.

So I got indigo, and then : Go to Help->Install New Software Click on Add: Name: "Indigo" Location: "http://download.eclipse.org/releases/indigo" Try to install Android Development Tools (as you will see, only 1 option out of 4 will appear - this is normal for Indigo)

Ensure you have the option "Contact all update sites during install to find required software". This option is located in the lower left corner on the first screen after choosing Help/Add New Software. This is unchecked by default. This WILL FIX the issue if it was unchecked.

The plugin will install in 3.7 32bit and 64bit.

The Google Plugin for Eclipse depends on other specific Eclipse components, such as WST. Your installation of Eclipse may not yet include all of them, but they can be easily installed by following these instructions. Eclipse 3.7 (Indigo)

 Select Help > Install New Software...

Click the link for Available Software Sites.
Ensure there is an update site named Indigo. 

If this is not present, click Add... and 
enter http://download.eclipse.org/releases/indigo for the Location.

Now go through the installation steps; Eclipse should download and install 
the plugin's dependencies.

I've also had this problem. I solved it by going to:

Clicking -> available software sites Select "Helios" and click Reload. Select "ADT Plugin" and click Reload. Then went back, tried again and it worked.

If you still can't get it working there are directions for doing it manually here:
http://developer.android.com/sdk/eclipse-adt.html#installing

(also: I'm using 3.7 64x, it's working fine, not having any issues.)

I tried installing and got the same error (using the new "marketplace"). I tried the typical Help->install new software... then where it says "Work with:" I entered:

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

followed all the prompts and everything seems to be working fine now.

Execute eclipse with root level

$sudo /opt/eclipse/eclipse

Go to Help->Install Software. Add the following link http://dl-ssl.google.com/android/eclipse/ .

Then press next and accept the license, it installs some of the software required then you will be gud to go.

After the eclipse restarts it prompts you to download the android sdk required or give the path of android sdk if already it is downloaded.

This works all the time what ever may be the version.

By the way, Eclipse + ADT (ADT Bundle) is now provided as a single package,

Developer.Android:ADT Bundle

None of the existing answers worked for me. Having all the correct update sites in "available sites" was not enough to tell Eclipse how to find its dependencies.

Using Fedora 14 and Eclipse Indigo 3.7.1, I had to follow these steps to make the installation working:

Check and install "Linux Tools" from http://download.eclipse.org/releases/indigo Check and install "Linux Tools" from http://download.eclipse.org/releases/indigo/201109230900

After restarting Eclipse, I was able to finaly install the Android SDK.

Thanks to all for the posts but unfortunatley none of the above solved my problem. Eventually what got it all working for me was to download eclipse indigo 3.7.2 and (this is very important) EXTRACT IT DIRECTLY INTO MY PROGRAMS FOLDER. Before I would extract it to my desktop and copy into the programs folder (C:\Program Files) but I would jus get an error message saying "The Eclipse executable launcher was unable to locate its companion shared library" when trying to run eclipse.

After extracting eclipse directly to my programs folder I ran it and added the ADT plugin the way reccomended in on the android site and so far all is working well :)

I'm on a windows 7 x64 machine and had jre-7u2-windows-x64.exe, jdk-7u2-windows-x64.exe and installer_r16-windows.exe installed before extracting eclipse.

I hope this can help someone else too :)

Still pretty bewildering. It seems some combination of the above suggestions worked in Eclipse 3.7.2.

First, I had to move to a network that dl-ssl.google.com hasn't blocked (this is an ongoing problem with the Google server) (Easy with a laptop, less so with my tower.)

The Eclipse folks should look at this problem. The user sees an error, something about a missing package "org.eclipse.wst.sse.core', say. There are 50 or so plugin repositories listed. which of these is the one that has this package??? None has a name containing a 'wst' or 'sse'.

This is very poor. There needs to be a way for the user to associate the error message with a repository solution.

Anyway: after some hunt-and-peck I ended up selecting (and reloading each repository, and with Contact all update sites during install to find required software checked)

https://dl-ssl.google.com/android/eclipse/ (ADT Plugin, which I added according to the Google instructions)

http://download.eclipse.org/releases/helios (Helios Milestone repository)

http://download.eclipse.org/eclipse/updates/3.6 (Eclipse Project Test Site)

One of these provided the packages needed for the Android plugin . Best guess: Helios.

The best answer (by Sathya) is also applicable in Eclipse Juno.

This seems to be fixed in Indigo Eclipse now, there's a video showing someone install android eclipse on youtube?

Cannot complete the install because one or more required items
could not be found.  Software currently installed: Shared profile 
1.0.0.1308118821836 (SharedProfile_epp.package.java 
1.0.0.1308118821836) Missing requirement: Shared profile 
1.0.0.1308118821836 (SharedProfile_epp.package.java 
1.0.0.1308118821836) requires 'org.maven.ide.eclipse

Run As Administrator !!!

Eclipse Classic or Galileo is the two you can use. The other Eclipse IDE are not meant to program or interpret JAVA in the same way. Download either 64x or 32x will work on Classic or Galileo on a PC. Just make sure you PC can handle which version of Eclipse you download.