我更新了我的SDK，现在它说我需要拥有我已经拥有的SDK。当我检查更新并尝试更新选项时，我得到这个:
An error occurred while collecting items to be installed
session context was:(profile=profile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,com.android.ide.eclipse.adt,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.adt.package,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.base,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.ddms,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.gldebugger,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.hierarchyviewer,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.ndk,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,com.android.ide.eclipse.traceview,21.1.0.v201302060044-569685
No repository found containing: osgi.bundle,overlay.com.android.ide.eclipse.adt.overlay,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.adt,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.ddms,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.gldebugger,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.hierarchyviewer,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.ndk,21.1.0.v201302060044-569685
No repository found containing: org.eclipse.update.feature,com.android.ide.eclipse.traceview,21.1.0.v201302060044-569685
有什么解决办法吗??我什么都试过了!
uncheck "在安装过程中联系所有更新站点以查找所需软件"
参见更新到SDK 21.1后无法在eclipse Juno (Windows 7)上安装Android ADT 21.1