一、报错
Warning:Navigator:isMounted is deprecated. Instead, make sure to clean up subscriptions and pending requests in componentWillUnmount to
prevent memory leaks.
原因解析：
isMounted 被弃用
解决方案：
1、
npm install React-native-deprecated-custom-components --save
2、
import Navigator from 'react-native-deprecated-custom-components';
3、用到的地方使用
<Navigator.Navigator
initialRoute={{ name: defaultName, component: defaultComponent }}
configureScene={(route) => {
return Navigator.Navigator.SceneConfigs.VerticalDownSwipeJump;
}}
renderScene={(route, navigator) => {
let Component = route.component;
return <Component {...route.params} navigator={navigator} />
}}
/>
4、千万记得使用Navigator.Navigator，我一直直接使用<Navigator></Navigator>，总是报错，
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components)
but got: object.
这表明没有找到Navigator组件，查了好半天才找到问题所在。
5、或者使用这种方式：
import CustomerComponents, {Navigator} from 'react-native-deprecated-custom-components';<Navigator></Navigator>
二、报错
Warning:Failed prop type: Invalid prop `style` of type `string` supplied to `Text`, expected `object`
原因解析：
style 类型出错, 不应该是string类型, 应该是object类型
解决方案：
将 style=”styles.face” ,该为 style={styles.face}
三、react-native run-android 报错
Error: Cannot create directory C:\Users\Administrator\Desktop\react-native\GD\an droid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values
:app:mergeDebugResources FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ‘:app:mergeDebugResources’.
> Error: Cannot create directory C:\Users\Administrator\Desktop\react-native\GD\ android\app\build\intermediates\incremental\mergeDebugResources\merged.dir\value s
* Try:
Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output.
BUILD FAILED
Total time: 1 mins 58.56 secs
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/android-setup.html
原因解析：
手机安全和隐私设置，默认禁止安装未知来源的应用
解决方案：
安全和隐私 -- 未知来源 -- 允许安装来自未知来源的应用
四、 react-native run-android 失败
04:12:06 E/adb: Unable to obtain result of ‘adb version’
:app:installDebug FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ‘:app:installDebug’.
> com.android.builder.testing.api.DeviceException: Could not create ADB Bridge. ADB location: D:\adt\sdk\platform-tools\adb.exe
* Try:
Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output.
BUILD FAILED
Total time: 1 mins 38.099 secs
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/android-setup.html
原因解析：
解决方案：
五、react-native run-android 失败
:app:mergeDebugResources
Error: Cannot create directory C:\Users\Administrator\Desktop\market\XMGBuy\andr oid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values
:app:mergeDebugResources FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ‘:app:mergeDebugResources’.
> Error: Cannot create directory C:\Users\Administrator\Desktop\market\XMGBuy\an droid\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values
原因解析：
解决方案：
