eclipse安装cdt插件报错

Cannot complete the install because one or more required items could not be found.
  Software being installed: C/C++ Remote Launch 6.0.0.201102110609 (org.eclipse.cdt.launch.remote.feature.group 6.0.0.201102110609)
  Missing requirement: C/C++ Remote Launch 6.0.0.201102110609 (org.eclipse.cdt.launch.remote.feature.group 6.0.0.201102110609) requires 'org.eclipse.rse.ui [3.0.0,4.0.0)' but it could not be found
有谁能帮忙解决一下么/

使用哪种方式安装的？
推荐在线安装[先安装好GCC]，不要直接下载CDT插件安装，以前就遇到过很多次，下载的CDT插件直接放到plug-in文件夹里后，CDT出错，在线安装就没问题，原因是下载的CDT包里的文件有错。