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

[luchenqian]

按照github上安装报错 This error is located at: in RNCProgressBar (at RNCProgressBarAndroid.android.js:43) in ProgressBarAndroid (at react-native-pdf/index.js:415) in RCTView (at View.js:34) in View (at react-native-pdf/index.js:409) in RCTView (at View.js:34) in View (at react-native-pdf/index.js:407) in Pdf (at business-agreement.tsx:18) in RCTView (at View.js:34) in View (at business-agreement.tsx:17) in BusinessAgreement (at SceneView.tsx:130) in StaticContainer in EnsureSingleNavigator (at SceneView.tsx:122) in SceneView (at useDescriptors.tsx:181) in RCTView (at View.js:34) in View (at CardContainer.tsx:245) in RCTView (at View.js:34) in View (at CardContainer.tsx:244) in RCTView (at View.js:34) in View (at CardSheet.tsx:33) in CardSheet (at Card.tsx:573) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:217) in AnimatedComponent (at createAnimatedComponent.js:278) in AnimatedComponentWrapper (at Card.tsx:555) in PanGestureHandler (at GestureHandlerNative.tsx:13) in PanGestureHandler (at Card.tsx:549) in RCTView (at View.js:34) in View (at createAnimatedComponent.js:217) in AnimatedComponent (at createAnimatedComponent.js:278) in AnimatedComponentWrapper (at Card.tsx:544) in RCTView (at View.js:34) in View (at Card.tsx:538) in Card (at CardContainer.tsx:206) in CardContainer (at CardStack.tsx:623) in RNSScreen (at createAnimatedComponent.js:217) in AnimatedComponent (at createAnimatedComponent.js:278) in AnimatedComponentWrapper (at src/index.native.tsx:150) in Screen (at Screens.tsx:74) in MaybeScreen (at CardStack.tsx:616) in RNSScreenContainer (at src/index.native.tsx:189) in ScreenContainer (at Screens.tsx:50) in MaybeScreenContainer (at CardStack.tsx:498) in CardStack (at StackView.tsx:462) in KeyboardManager (at StackView.tsx:458) in RNCSafeAreaProvider (at SafeAreaContext.tsx:76) in SafeAreaProvider (at SafeAreaProviderCompat.tsx:42) in SafeAreaProviderCompat (at StackView.tsx:455) in GestureHandlerRootView (at GestureHandlerRootView.android.tsx:26) in GestureHandlerRootView (at StackView.tsx:454) in StackView (at createStackNavigator.tsx:87) in StackNavigator (at navigation/index.tsx:97) in EnsureSingleNavigator (at BaseNavigationContainer.tsx:411) in BaseNavigationContainer (at NavigationContainer.tsx:91) in ThemeProvider (at NavigationContainer.tsx:90) in NavigationContainer (at navigation/index.tsx:91) in AppNavigator (at root.js:21) in Provider (at root.js:20) in Root (at renderApplication.js:47) in RCTView (at View.js:34) in View (at AppContainer.js:107) in RCTView (at View.js:34) in View (at AppContainer.js:134) in AppContainer (at renderApplication.js:40)

[opatricpires]

This could help you https://github.com/wonday/react-native-pdf/issues/558#issuecomment-815489076