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Android issues with eclipse

I installed the Android SDK installer_r20-windows.exe
When I went to install android tools via eclipse, it displays the error:
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 22.0.5.v201307292155--757759
(com.android.ide.eclipse.adt.feature.group 22.0.5.v201307292155--757759)
Missing requirement: Android Development Tools 22.0.5.v201307292155--757759 (com.android.ide.eclipse.adt.feature.group 22.0.5.v201307292155--757759)
requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
What version of eclipse is compatible with android installer_r20-windows.exe?

I was having the same problem with the Linux version of Eclipse 3.8.
The following solution from Google FAQ page worked for me, and as it was quite platform independent, it might help at other platforms too:
1) Select Help > Install New Software...
2) Add the update software site (by clicking Add...) and enter http://download.eclipse.org/releases/indigo [change the last word according to your Eclipse version] for the Location.
3) After adding the update site, try installing Android Developer Tools again, it should download all dependencies now.

Android plugin install Error. operation cannot be completed

I am trying to add plugin android ADT for eclipse.
I've followed the steps given here
But when I am trying to install available softwares its giving error like
"The Operation cannot be completed. see the details."
in the details the following error is getting displayed.
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534)
Missing requirement: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534) requires 'org.eclipse.core.runtime 3.6.0' but it could not be found.
I am getting same error even if I downloaded the ADT-16.0.1.zip and given the local archive path.
I am using Eclipse Gelelio.

The problem is that you use an old version of Eclipse (Galileo) 3.5.x. There is a requirement in Android SDK that you should use Eclipse 3.6 minimum (Helios). So you have to install at first new version of Eclipse.
I faced with the same problem when I was using Ubuntu 10.04 because by default from the repository it installs Eclipse Galileo.

You are facing an Eclipse bug/issue. You need to following workaround (also mentioned here)
Select Help > Install New Software... Click the link for Available> Software Sites.
Ensure there is an update site named Galileo. If this is not present, click Add
Enter http://download.eclipse.org/releases/galileo for the Location
Now go through the installation steps, Eclipse should download and install the plugin's dependencies.

Unable to perform ADT offline installation

I am trying to install ADT 16.0.1 in Eclipse SDK 3.7.2 in a Mandriva Linux 2011 VM. I've successfully installed Eclipse, and I've downloaded the ADT plugin archive. I've then tried to point Eclipse's "Install New Software" to the archive, which it detects properly. However, when I select all and try to install, it hangs there, with the following regular log messages:
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused
org.apache.commons.httpclient.HttpMethodDirector executeWithRetry
INFO: Retrying request
After a while, it just aborts with the following error message:
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534)
Missing requirement: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534) requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
Why is this happening, and how can I fix it?
Thanks!

ADT has a dependency on org.eclipse.wst.sse.core, which is the Web Standard Toolkit, located at: http://www.eclipse.org/webtools/wst/main.php
This is a duplicate of question ADT requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found so I would try those solutions first.
Note that if you want to do an offline install, it might just be easiest to download the Eclipse IDE for Java EE Developers, which includes the WST core plugin: http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/indigosr2 Then install ADT plugin into that.

Android ADT Installation Error

I'm using Ubuntu 11.10 and installed Eclipse from the Ubuntu Software Center. Here's the information of the Eclipse I've downloaded. I have Java SDK 6 and 7, but Eclipse is configured to use the Java SDK 6.
Version: 3.7.0
Build id: I20110613-1736
I was about to install the ADT plug-in on Eclipse when after hitting the first Next button in the installation these error telling me I can't install the ADT unless:
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534)
Missing requirement: Android Development Tools 16.0.1.v201112150204-238534 (com.android.ide.eclipse.adt.feature.group 16.0.1.v201112150204-238534) requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
How can I resolve this problem?
Thanks in advance.

The first recommendation is to NOT install Eclipse from any Linux package manager or software repository. Instead, just get it from http://www.eclipse.org/downloads/. The builds that linux distro's install are often modified (mangled, some would say).
The particular error you're getting is because ADT requires part of the Eclipse WST project features, but the update sites you have configured don't include WST. Getting one of the packages directly from http://www.eclipse.org/downloads/ will solve that, along with knowing exactly what you've got (as opposed to relying on whoever assembled the package for Ubuntu).

I had similar problems and the above answer did not work, in this case try:
deleting workspace directory
check running eclipse as root (just for duration of this ADT install)
for more info see posts halfway through this thread:
http://androidforums.com/galaxy-nexus-all-things-root/466275-having-trouble-installing-adt-plugin.html

how to install ADT16.0.1 pulgin in Eclipse3.5

whenever i am trying to install ADT plugin , i am getting below error,
Cannot complete the install because one or more required items could
not be found.
Software being installed: Android Development Tools
16.0.1.v201111031820-219398 (com.android.ide.eclipse.adt.feature.group
16.0.1.v201111031820-219398)
Missing requirement: Android Development Tools
16.0.1.v201111031820-219398 (com.android.ide.eclipse.adt.feature.group
16.0.1.v201111031820-219398) requires 'org.eclipse.wst.sse.core 0.0.0'
but it could not be found
I am working with window 7.
I have tried with Archive also but still getting same error.
How can i use Android in my eclipse?
What i will do?

1)First Install the ADT15.0.1 plugins but don't delete it & Upgrade to ADT 16.0.0 or ADT 16.0.1
2)Plz go to the SDK Manager.Exe in androidsdkwindows folder see whether it is updated SDK or not if not install once again.
3)See the Android Support v4 jar file installed or not if not installed from the SDK Manager
and configure the library path.
It will Definitely work!!!

Seems to be an issue with your eclipse installation. With a little bit of googling I found this: http://androidcommunity.com/forums/f4/missing-org-eclipse-wst-sse-core-0-0-0-while-installing-sdk-for-eclipse-3-5-a-28714/