javascript - 不变违规 : requireNativeComponent: "BVLinearGradient"

Question

我一直在使用react-native-gradient，并且收到有关该包的以下错误。

错误

Invariant Violation: requireNativeComponent: "BVLinearGradient" was not found in the UIManager.

This error is located at:
    in BVLinearGradient (at react-native-linear-gradient/index.ios.js:54)
    in LinearGradient (at SignupLogin.js:46)
    in RCTView (at View.js:34)
    in View (at createAnimatedComponent.js:165)
    in AnimatedComponent (at createAnimatedComponent.js:215)
    in ForwardRef(AnimatedComponentWrapper) (at TouchableOpacity.js:224)
   .........    
    in View (at AppContainer.js:106)
    in DevAppContainer (at AppContainer.js:121)
    in RCTView (at View.js:34)
    in View (at AppContainer.js:132)
    in AppContainer (at renderApplication.js:39)
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:171:19 in handleException
at node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:6 in handleError
at node_modules/expo-error-recovery/build/ErrorRecovery.fx.js:12:21 in ErrorUtils.setGlobalHandler$argument_0
at [native code]:null in flushedQueue
at [native code]:null in invokeCallbackAndReturnFlushedQueue

用法

...
import * as Animatable from "react-native-animatable";
import LinearGradient from "react-native-linear-gradient";
import MaterialIcons from "react-native-vector-icons/MaterialIcons";
import { useTheme } from "@react-navigation/native";


const SignupLogin = ({ navigation }) => {
  const { colors } = useTheme();
  return (
    <View style={styles.container}>
      .....
        <View style={styles.button}>
          <TouchableOpacity onPress={() => navigation.navigate("sign-in")}>
            <LinearGradient
              colors={["#0831d4", "#0131ab"]}
              style={styles.signIn}
            >
              <Text style={styles.textSign}>Get started</Text>
              <MaterialIcons name="navigate-next" color="#fff" size={20} />
            </LinearGradient>
         .....
    </View>
  );
};


export default SignupLogin;

这是页脚登录和注册菜单之间的简单导航，App.js 和其余文件均采用标准编码方法。

Answer 1

如果您使用的是 Windows 和 React-native cli(不是 expo):

1- 在 android/settings.gradle 中，检查是否

包括':react-native-线性梯度' 项目(':react-native-linear-gradient').projectDir = new File(rootProject.projectDir，'../node_modules/react-native-线性-gradient/android')

存在..如果不存在，添加它们

---

2- 在 android/app/build.gradle 中，检查是否

implementation project(':react-native-linear-gradient')

存在于依赖项{ ... } ..如果不存在，则添加

---

3- 在 android/app/src/main/java/com/{YOUR_APP_NAME}/MainApplication.java 中，找到

@覆盖 protected 列表 getPackages() { ....}

然后替换注释//packages.add(new MyReactNativePackage());

与=> packages.add(new LinearGradientPackage());

---

它对我有用..希望它也对你有用