同问，也出现了这个问题 好急！

@左鱼子 附上taro info Taro CLI 2.0.1 environment info: System: OS: macOS 10.15.2 Shell: 3.2.57 - /bin/bash Binaries: Node: 12.14.0 - /usr/local/bin/node Yarn: 1.21.1 - /usr/local/bin/yarn npm: 6.13.4 - /usr/local/bin/npm npmPackages: @tarojs/components: 2.0.1 => 2.0.1 @tarojs/components-qa: 2.0.1 => 2.0.1 @tarojs/mini-runner: 2.0.1 => 2.0.1 @tarojs/router: 2.0.1 => 2.0.1 @tarojs/taro: 2.0.1 => 2.0.1 @tarojs/taro-alipay: 2.0.1 => 2.0.1 @tarojs/taro-h5: 2.0.1 => 2.0.1 @tarojs/taro-qq: 2.0.1 => 2.0.1 @tarojs/taro-quickapp: 2.0.1 => 2.0.1 @tarojs/taro-rn: 2.0.1 => 2.0.1 @tarojs/taro-swan: 2.0.1 => 2.0.1 @tarojs/taro-tt: 2.0.1 => 2.0.1 @tarojs/taro-weapp: 2.0.1 => 2.0.1 @tarojs/webpack-runner: 2.0.1 => 2.0.1 eslint-config-taro: 2.0.1 => 2.0.1 eslint-plugin-taro: 2.0.1 => 2.0.1 nerv-devtools: ^1.5.6 => 1.5.6 nervjs: ^1.5.6 => 1.5.6 stylelint-config-taro-rn: 2.0.1 => 2.0.1 stylelint-taro-rn: 2.0.1 => 2.0.1 npmGlobalPackages: typescript: 3.7.4

@左鱼子 原因是在小程序转taro时引用路径错误，改正后可以正常转换和引用；要一个个语法错误和不规范揪出来才行。

更新下依赖包就好了，新版本修复了这个bug

注意这一行 com.android.builder.testing.api.DeviceException: No connected devices! 没有已连接的设备，应该是adb桥接没做好 包已经打出来了，你可以在android/app/build/outputs/apk/debug中看到 手动安装到你的模拟器或者测试机上