小编Abd*_*du4的帖子

我正在使用react-native-maps但是我遇到了一个问题,经过大量谷歌搜索没有回答让我在这里问.我正在尝试使用自定义标记作为地图中的标记,如下图所示

• 当我搜索时,我发现需要使用Custom Marker来完成制作者的设计,然后我创建了一个Custom Marker组件

  import React, { Component } from "react";
  import { View } from "react-native";
  import {
  Text,
  Left,
  Right,
  Thumbnail,
  } from "native-base";
  const defaultEmployeeLogo = require("../../../assets/defualtEmployee.png");
  class CustomMarker extends Component {
  render() {
      return (
      <View style={{ flexDirection: 'row', width: 140, height: 60, 
        borderRadius: 70, backgroundColor: 'orange' }}>
          <Left>
              <Thumbnail source={defaultEmployeeLogo} />
          </Left>
          <Right>
              <Text style={{
                  color: '#fef',
                  fontSize: 13,
                  paddingBottom: 2,
                  fontFamily: 'Roboto',
                  alignItems: 'center',
                  paddingRight: 10
              }}>Mohammad</Text>
          </Right></View >);
     }
  }
  export …

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我目前正在处理ionic4应用程序，但是最近在向应用程序添加https://ionicframework.com/docs/native/fcm插件后，在android reall设备上构建该应用程序时，它停止了工作。

起初它抱怨结构密钥，但是我从来没有打算在我的应用程序上使用结构崩溃解决。

错误日志：

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> 1 exception was raised by workers:
  java.lang.RuntimeException: Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:27.1.1)
  Duplicate class android.support.v4.app.INotificationSideChannel$Stub found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:27.1.1)
  Duplicate class android.support.v4.app.INotificationSideChannel$Stub$Proxy found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:27.1.1)
  Duplicate class android.support.v4.os.IResultReceiver found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:27.1.1)
  Duplicate class android.support.v4.os.IResultReceiver$Stub found in modules classes.jar (androidx.core:core:1.0.0) and classes.jar (com.android.support:support-compat:27.1.1)
  Duplicate class …