Problem with Phonegap eclipse plugin installation

I followed this link to install Phonegap eclipse plugin for android http://wiki.phonegap.com/w/page/34483744/PhoneGap%20Eclipse%20PlugIn%20for%20Android

but its showing the below errors/messages. I tried several times but I couldnt understand the messages its showing.

What should I do to fix it? need your suggestions.

Thanks.

 Cannot complete the install because of a conflicting dependency.
Software being installed: PhonegapForAndroid 1.2.4.201108181012 (com.mds.phonegapForAndroid.feature.group 1.2.4.201108181012)
 Software currently installed: Eclipse SDK 3.5.0.I20090611-1540 (org.eclipse.sdk.ide 3.5.0.I20090611-1540)
      Only one of the following can be installed at once: 
     Core Resource Management 3.5.0.v20090512 (org.eclipse.core.resources 3.5.0.v20090512)
    Core Resource Management 3.5.2.R35x_v20091203-1235 (org.eclipse.core.resources 3.5.2.R35x_v20091203-1235)
     Core Resource Management 3.5.1.R35x_v20090826-0451 (org.eclipse.core.resources 3.5.1.R35x_v20090826-0451)
      Cannot satisfy dependency:
From: Phonegap for Android 1.2.4.201108181012 (com.mds.apg 1.2.4.201108181012)
To: bundle org.eclipse.core.resources 3.5.2
    Cannot satisfy dependency:
From: PhonegapForAndroid 1.2.4.201108181012 (com.mds.phonegapForAndroid.feature.group 1.2.4.201108181012)
To: com.mds.apg [1.2.4.201108181012]
  Cannot satisfy dependency:
From: Eclipse Platform 3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSMvJR2sJ (org.eclipse.platform.feature.group 3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSM开发者_如何学CvJR2sJ)
    To: org.eclipse.core.resources [3.5.0.v20090512]
   Cannot satisfy dependency:
    From: Eclipse Project SDK 3.5.0.v20090423-7Q7bA7DPQ1SM6OYQ7wKYJhI-z-xZJCmLTBRhtZ0o61b1z (org.eclipse.sdk.feature.group 3.5.0.v20090423-7Q7bA7DPQ1SM6OYQ7wKYJhI-z-xZJCmLTBRhtZ0o61b1z)
  To: org.eclipse.platform.feature.group [3.5.0.v20090611a-9gEeG1HFtQcmRThO4O3aR_fqSMvJR2sJ]
  Cannot satisfy dependency:
     From: Eclipse SDK 3.5.0.I20090611-1540 (org.eclipse.sdk.ide 3.5.0.I20090611-1540)
   To: org.eclipse.sdk.feature.group [3.5.0.v20090423-7Q7bA7DPQ1SM6OYQ7wKYJhI-z-xZJCmLTBRhtZ0o61b1z]

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no need to install phonegap in eclipse.you need add phonegap.jar to your project and few changes....read it and ... http://www.phonegap.com/start#android

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The AppLaud Eclipse plugin for PhoneGap requires at minimum of Eclipse 3.6 (Helios). It does not work with 3.5 (Galileo). The plugin also works with 3.7 (Indigo).

It's true that you can work around not having the plugin, but it makes PhoneGap project start-up much easier.