Jerryman_GHJ的博客

FAILURE: Build failed with an exception.what went wrong?java.lang.NullPointerException (no error message) This Problem created when the suddenly System restarted, then gradle file corrupted. an...

1.win10 按电脑+X，选择管理员命令提示符 运行安装如果还不行，重启电脑

错误：Failed to finalize session : INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package com.myapp signatures do not match the previously installed version; ignoring!意思：myApp这个包的签名和之前安装的版本的签名不匹配。解决：你需要先卸载之前安装的...

1.下载java sdk配置java_home 环境变量 path 、 classPath2.下载python2配置其环境变量3.下载node4.npm 安装 react-native-cli5.下载Android studio  安装，下载Android SDK6.配置adb 环境变量...

1.Execution failed for task ':app:installDebug'.> com.android.builder.testing.api.DeviceException: No online devices found.解决办法：1.输入adb devices 查看当前设备列表及其状态。              第一次执行此命令会先杀掉adb进程：a...

组件内配置页面标题，navigationOptions 首字母要小写~~static navigationOptions = { title: 'MainPage'}