符号未找到Android React Native

Question

所以我正在使用这个包尝试将MapBox集成到我正在处理的React-Native项目中,并且在运行时我一直收到此错误.我按照他们页面上的说明进行操作,我仍然会这样做,所以我假设我忘记了安装包或其他东西.有人知道怎么修这个东西吗？

a:17: error: cannot find symbol
protected List getPackages() {
^
symbol: class List
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:17: error: cannot find symbol
protected List getPackages() {
^
symbol: class ReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:16: error: method does not override or implement a method from a supertype
@Override
^
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:19: error: cannot find symbol
new MainReactPackage(),
^
symbol: class MainReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:18: error: cannot find symbol
return Arrays.asList(
^
symbol: class ReactPackage
location: class MainActivity
/Github/ReactApp/android/app/src/main/java/com/reactapp/MainActivity.java:18: error: cannot find symbol
return Arrays.asList(
^
symbol: variable Arrays
location: class MainActivity
6 errors

编辑:这是MainActivity的源代码:

package com.reactapp;

import com.facebook.react.ReactActivity;
import com.oblador.vectoricons.VectorIconsPackage;
import com.mapbox.reactnativemapboxgl.ReactNativeMapboxGLPackage;

public class MainActivity extends ReactActivity {

    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "ReactApp";
    }
    @Override
  protected List<ReactPackage> getPackages() {
    return Arrays.<ReactPackage>asList(
      new MainReactPackage(),
      new ReactNativeMapboxGLPackage());  // <-- Register package here
  }
}

Answer 1

你缺少一些进口:

 import java.util.List;
 import java.util.Arrays;
 import com.facebook.react.shell.MainReactPackage;
 import com.facebook.react.ReactPackage;

另外你@Overrides的一个方法(getPackages)不会覆盖超类中的任何东西.去掉它.