ADT Plugin for Eclipse – “Cannot complete the install because one or more required items could not be found. Software being installed: Android Development Tools 15.0.0.v201110251216-213216 (com.android.ide.eclipse.adt.feature.group 15.0.0.v201110251216-213216) Missing requirement: Android Development Tools 15.0.0.v201110251216-213216 (com.android.ide.eclipse.adt.feature.group 15.0.0.v201110251216-213216) requires ‘org.eclipse.wst.sse.core 0.0.0’ but it could not be found”

When you try to download the ADT Plugin show the following error message:

Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 15.0.0.v201110251216-213216 (com.android.ide.eclipse.adt.feature.group 15.0.0.v201110251216-213216)
Missing requirement: Android Development Tools 15.0.0.v201110251216-213216 (com.android.ide.eclipse.adt.feature.group 15.0.0.v201110251216-213216) requires ‘org.eclipse.wst.sse.core 0.0.0’ but it could not be found

Solution:

Right-click on Eclipse.exe file or his shortcut and chose “Run As Administrator” then

  1. Select Help > Install New Software….
  2. Click Add, in the top-right corner.
  3. In the Add Repository dialog that appears, enter “ADT Plugin” for the Name and the following URL for the Location:
    https://dl-ssl.google.com/android/eclipse/
  4. Click OK
  5. In the Available Software dialog, select the checkbox next to Developer Tools and click Next.
  6. In the next window, you’ll see a list of the tools to be downloaded. Click Next.
  7. Read and accept the license agreements, then click Finish.Note: If you get a security warning saying that the authenticity or validity of the software can’t be established, click OK.
  8. When the installation completes, restart Eclipse.

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