我有OS X Lion，Eclipse 4.2.1，PyDev 2.7.1并应用了所有更新。 尝试安装Aptana Studio 3.3.2 Eclipse插件但是当我尝试（http://download.aptana.com/studio3/plugin/install）时，我收到以下错误。 我需要先卸载PyDev吗？ 谢谢！
Cannot complete the install because of a conflicting dependency.
Software being installed: Aptana Studio 3 Plugin 3.3.2.201302081500-7G7F17UIS_IYK7UrNh8biKtz0dax (com.aptana.feature.studio.feature.group 3.3.2.201302081500-7G7F17UIS_IYK7UrNh8biKtz0dax)
Software currently installed: PyDev for Eclipse 2.7.1.2012100913 (org.python.pydev.feature.feature.group 2.7.1.2012100913)
Only one of the following can be installed at once:
Pydev Extensions 1.5.5.2010030420 (com.python.pydev 1.5.5.2010030420)
Pydev Extensions 2.3.0.2011121518 (com.python.pydev 2.3.0.2011121518)
...several more lines like these, clipped...
Cannot satisfy dependency:
From: Aptana Studio 3 Plugin 3.3.2.201302081500-7G7F17UIS_IYK7UrNh8biKtz0dax (com.aptana.feature.studio.feature.group 3.3.2.201302081500-7G7F17UIS_IYK7UrNh8biKtz0dax)
To: com.aptana.pydev.feature.feature.group [2.7.0.2013012902-7g9I-8Jez0cez0LZfI]
Cannot satisfy dependency:
From: Aptana Pydev 2.7.0.2013012902-7g9I-8Jez0cez0LZfI (com.aptana.pydev.feature.feature.group 2.7.0.2013012902-7g9I-8Jez0cez0LZfI)
To: com.python.pydev [2.7.0.2013012902]
Cannot satisfy dependency:
From: PyDev for Eclipse 2.7.1.2012100913 (org.python.pydev.feature.feature.group 2.7.1.2012100913)
To: com.python.pydev [2.7.1.2012100913]