1. 提示:“Setting build path” has encountered a problem,Could not write file D:\\workspace\demo\.classpath 原因有可能是因为.classpath文件为隐藏文件,修改其隐藏属性为可见即可, 或者:进入项目根目录, 找到项目的.classpath文件,直接删除,重新启动. 2. java compiler level does not match the version of the install…