activity_main cannot be resolved or is not a field
来源：互联网 发布：mac 无法连接网络 编辑：程序博客网 时间：2024/05/21 04:41
刚遇到这个纠结的问题，代码都没错，R.layout.main总是在layout上游错误提示波浪线。在网上查了好多都是说clean一下工程然后build工程就可以了，或者fix project properties 但是还是解决不了...
原因可能是添加文件，比如xml文件或者资源文件时，系统自动添加了import android.R;android.R是系统提供的资源，R是应用程序的资源。
这时候只要删除 import android.R;这条语句就可以了。
参考链接：http://blog.sina.com.cn/s/blog_3e28c8a50101fuul.html
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- activity_main cannot be resolved or is not a field
- activity_main cannot be resolved or is not a field
- activity_main cannot be resolved or is not a field
- activity_main cannot be resolved or is not a field
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