java是什么 为什么eclipse安装后将java代码报错说the project was not built since its build path is incomplete?

为什么eclipse安装后将java代码报错说the project was not built since its build path is incomplete?如果您使用的是Java8(JDK

为什么eclipse安装后将java代码报错说the project was not built since its build path is incomplete?

如果您使用的是Java8(JDK1.8),请查看eclipse版本是否过低。尝试更新到新版本。如果排除上述可能性,可以尝试:-打开项目菜单(顶部菜单中的项目)并选中“自动生成”-重新启动eclipse-打开项目菜单,选择“清除”,然后自动打开“生成”