ecplise安装CDT环境缺少包集合

给ecplise安装cdt的时候报错Cannotcompletetheinstallbecauseoneormorerequireditemscouldnotbefound.Softwarebeinginstalled:C/C++RemoteLaunch6.0.0.201102110609(org.eclipse.cdt.launch.remote.feature.group6.0.0.201102110609)Missingrequirement:C/C++RemoteLaunch6.0.0.201102110609(org.eclipse.cdt.launch.remote.feature