eclipse安装windowbuilder遇到了好多问题，耗费好多时间也解决不了
这个看看： https://blog.csdn.net/qq_41998273/article/details/87186197
你是否已经装了一个版本， 错误信息都是 “更新的版本已经安装了” 。
显示细节：
Cannot complete the request. See the error log for details.
"Swing Designer" will be ignored because a newer version is already installed.
"SWT Designer Documentation" will be ignored because a newer version is already installed.
"SWT Designer Core" will be ignored because a newer version is already installed.
"SWT Designer XWT Support (requires Eclipse WTP/WST)" will be ignored because a newer version is already installed.
"WindowBuilder Core" will be ignored because a newer version is already installed.
"Swing Designer Documentation" will be ignored because a newer version is already installed.
"SWT Designer" will be ignored because a newer version is already installed.
"WindowBuilder Java Core" will be ignored because a newer version is already installed.
"WindowBuilder Core Documentation" will be ignored because a newer version is already installed.
"WindowBuilder GroupLayout Support" will be ignored because a newer version is already installed.
"SWT Designer SWT_AWT Support" will be ignored because a newer version is already installed.
"WindowBuilder Core UI" will be ignored because a newer version is already installed.
"WindowBuilder XML Core (requires Eclipse WTP/WST)" will be ignored because a newer version is already installed.
太感谢了