I had followed the react-native docs for getting started but I'm stuck at launching the default App itself after running npx react-native run-android

Question

C:\Users\Xyz Choudhary\Test>npx react-native run-android info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag. Jetifier found 896 file(s) to forward-jetify. Using 8 workers... info JS server already running. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. info Launching emulator... 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. 'C:\Users\Xyz' is not recognized as an internal or external command, operable program or batch file. error Failed to launch emulator. Reason: Could not start emulator within 30 seconds.. warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch. info Installing the app... Downloading https://services.gradle.org/distributions/gradle-7.1.-all.zip

Exception in thread "main" java.io.FileNotFoundException: https://downloads.gradle-dn.com/distributions/gradle-7.1.-all.zip at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1981) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1577) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224) at org.gradle.wrapper.Download.downloadInternal(Download.java:87) at org.gradle.wrapper.Download.download(Download.java:67) at org.gradle.wrapper.Install$1.call(Install.java:68) at org.gradle.wrapper.Install$1.call(Install.java:48) at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69) at org.gradle.wrapper.Install.createDist(Install.java:48) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 Exception in thread "main" java.io.FileNotFoundException: https://downloads.gradle-dn.com/distributions/gradle-7.1.-all.zip at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1981) at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1577) at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224) at org.gradle.wrapper.Download.downloadInternal(Download.java:87) at org.gradle.wrapper.Download.download(Download.java:67) at org.gradle.wrapper.Install$1.call(Install.java:68) at org.gradle.wrapper.Install$1.call(Install.java:48) at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69) at org.gradle.wrapper.Install.createDist(Install.java:48) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:63)

at makeError (C:\Users\Xyz Choudhary\Test\node_modules\execa\index.js:174:9)
at C:\Users\Xyz Choudhary\Test\node_modules\execa\index.js:278:16
at processTicksAndRejections (internal/process/task_queues.js:95:5)
at async runOnAllDevices (C:\Users\Xyz Choudhary\Test\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:5)
at async Command.handleAction (C:\Users\Xyz Choudhary\Test\node_modules\react-native\node_modules\@react-native-community\cli\build\index.js:186:9)

info Run CLI with --verbose flag for more details.

https://stackoverflow.com/a/64442127/11647620 – Usama Altaf Jun 25 '21 at 12:50 — Usama Altaf, Jun 25 '21 at 12:50
finally fixed the issues i have been facing – samrat Jun 27 '21 at 14:29 — samrat, Jun 27 '21 at 14:29

score 0 · Answer 1 · answered Jun 25 '21 at 12:38

0

It May be failed due to dependency issues.

Go to Your project directory and Delete node_modules Folder.

After that open cmd and run this commands:

npm install or yarn install

npm start -- --reset-cache

npx react-native run-android

answered Jun 25 '21 at 12:38

Kuldip Badga

1

samrat · Answer 2 · 2021-06-28T10:54:21.793

finally fixed the issues i have been facing first I downgraded the jdk 16 version to jdk 15 and added it to enviroment variable path.

Then went to android\gradle-wrapper\gradle-wrapper-properties (project folder) and changed the version to latest gradle version distributionUrl=https://services.gradle.org/distributions/gradle-6.7.-all.zip to distributionUrl=https://services.gradle.org/distributions/gradle-6.9-all.zip.

and then went to android\gradle-wrapper\build.gradle (project folder) and changed the dependencies to latest plugin version classpath("com.android.tools.build:gradle:4.2.0")

After that finally the boilerplate of the project created ran using npx react-native run-android

I had followed the react-native docs for getting started but I'm stuck at launching the default App itself after running npx react-native run-android

2 Answers2