尝试构建我的设备的本机

Question

I am trying to build my react native app. But I keep getting this error enter image description here

• What went wrong: A problem occurred configuring project ':app'.

  failed to find target with hash string 'android-23' in: C:\\sdk

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Answer 1

On SDK Manager , be sure to check the box on " show package descriptions" ; then you should also select the " Google APIs " for the version you are willing to install.

Install it and then you should be ok...

hope it'll helps you...

Answer 2

I usually open Android Studio after I setup my react native app, and open the android project from there (choose open, navigate to the app folder, then choose the android app folder inside of it),

• when it loads up you would get prompted to install missing (sdk-23) if you don't have it.

• then also go to project's build.gradle file (the one with Top-level build file... text on top) and change the following:

   buildscript { \n    repositories { \n        google() //add this \n        mavenLocal() //add this \n        jcenter() \n    } \n    dependencies { \n        classpath 'com.android.tools.build:gradle:3.0.0' //change this \n\n
    // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } 
  \n\n} \n\nallprojects { \n    repositories { \n        google() //add this \n        mavenLocal() \n        jcenter() \n        maven { \n            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm \n            url "$rootDir/../node_modules/react-native/android" \n        } \n    } \n}  

• hit sync on the yellow toolbar (after project syncs you might be prompted to update the buildToolsVersion to '26.0.2' do that and sync again.

• Try to run/build your app to emulator