Java 第一次在IntelliJ-Hello Word错误
我刚刚做了一个Hello Word应用程序Android。但是,我有一个错误:Java 第一次在IntelliJ-Hello Word错误,java,android,intellij-idea,Java,Android,Intellij Idea,我刚刚做了一个Hello Word应用程序Android。但是,我有一个错误: Error(3, 19) package android.app does not exist Error(4, 18) package android.os does not exist Error(6, 33) cannot find symbol symbol: class Activity Error(11, 26)cannot find symbol symbol: class Bundle Err
Error(3, 19) package android.app does not exist
Error(4, 18) package android.os does not exist
Error(6, 33) cannot find symbol
symbol: class Activity
Error(11, 26)cannot find symbol
symbol: class Bundle
Error(12, 9)cannot find symbol
symbol : variable super
Error(13, 9)cannot find symbol
symbol : method setContentView(int)
Error(10, 5)method does not override or implement a method from a supertype.
当我双击“错误”时,我得到以下信息:
package com.example.Hello;
import android.app.Activity;
import android.os.Bundle;
public class MyActivity extends Activity {
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
我也有同样的问题。
添加SDK时intelliJ有时会丢失路径/文件
添加android库看看你安装了android SDK吗?除了这个答案:还要确保在“项目设置>模块>android SDK”下指向正确的SDK:),当使用版本控制时,此设置可能会出错。