我正在尝试安装“BlackBerry Plug-in for Android Development”，最后收到以下错误：
请问这有什么问题吗？
An error occurred while collecting items to be installed
session context wasprofile=profile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,com.android.ide.eclipse.adt,21.0.0.v201210310015-519525
No repository found containing: osgi.bundle,com.android.ide.eclipse.adt.package,21.0.0.v201210310015-519525
No repository found containing: osgi.bundle,com.android.ide.eclipse.base,21.0.0.v201210310015-519525
No repository found containing: osgi.bundle,com.android.ide.eclipse.ddms,21.0.0.v201210310015-519525
No repository found containing: osgi.bundle,overlay.com.android.ide.eclipse.adt.overlay,21.0.0.v201210310015-519525
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.adt,21.0.0.v201210310015-519525
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.ddms,21.0.0.v201210310015-519525