Error Failed to install the app. Make sure you have the Android development environment set up - react-native

Question

I created the react-native project, then open the folder, at the terminal; After running "npm start" and then "react-native run-android" I was able to run it on the virtual device. However, when I do this from the vscode terminal, I get the following error;
info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 863 file(s) to forward-jetify. Using 4 workers...
info JS server already running.
info Installing the app...
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
Caused by: java.lang.ClassNotFoundException: org.gradle.wrapper.GradleWrapperMain
error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
Caused by: java.lang.ClassNotFoundException: org.gradle.wrapper.GradleWrapperMain
at checkExecSyncError (child_process.js:601:13)
at execFileSync (child_process.js:621:13)
at runOnAllDevices (/home/myworldsoftware-u/İndirilenler/project2/node_modules/#react-native-community/cli-platform-android/build/commands/runAndroid/runOnAllDevices.js:74:39)
at buildAndRun (/home/myworldsoftware-u/İndirilenler/project2/node_modules/#react-native-community/cli-platform-android/build/commands/runAndroid/index.js:158:41)
at then.result (/home/myworldsoftware-u/İndirilenler/project2/node_modules/#react-native-community/cli-platform-android/build/commands/runAndroid/index.js:125:12)
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:188:7)

Answer 1

npx react-native doctor
This command checks your environment and displays a report of the status of react-native installation. Check the output carefully for other software you might need to install

Answer 2

You should change distributionUrl in android/gradle/wrapper/gradle-wrapper.properties to
distributionUrl=https://services.gradle.org/distributions/gradle-6.3-all.zip

Answer 3

You need to make focus on 2 files to check them ..either they are present or not or the code inside them is correct...
1.local.properties file
A.check that it is present or not..if yes go to step a2 or if not then:
a1. then inside the yourAppPath/Android/ you need to make a file with name local.properties
a2. And inside that put the path of android sdk
eg: sdk.dir=C\:\\Users\\UserNameDirectory\\AppData\\Local\\Android\\Sdk
B. inside yourAppPath/Android/setting.gradle
b1. check if not present then add include ':app'

Answer 4

Open android folder on android studio
Then wait of gradle build to complete
Issue solved

Answer 5

Put below line in your android/gradle.properties file:
android.useAndroidX=true
android.enableJetifier=true

Answer 6

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
Exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
I have the same problem. At present, Android virtual machine can run normally, but running react-native run-android will cause such a problem