Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081

Hello, I’m new to react-native and i keep getting this error everytime i try to run: react-native run-android

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.2/userguide/command_line_interface.html#sec:command_line_warnings

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:installDebug'.
> java.io.IOException: The filename, directory name, or volume label syntax is incorrect

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 14s

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081

What’s wrong? is there something missing?

[tanveerctg]

I also faced a similar problem. then I checked out the documentation again.

My problem was ANDROID_HOME environment variable was not added properly. Make sure you added ``ANDROID_HOME environment variablecorrectly

[IRAKLE]

i have the same problem, anyone fix it ?

System: OS: macOS 11.1 CPU: (4) x64 Intel® Core™ i7-6660U CPU @ 2.40GHz Memory: 32.75 MB / 16.00 GB Shell: 5.8 - /bin/zsh Binaries: Node: 14.15.4 - /usr/local/bin/node Yarn: 1.22.10 - /usr/local/bin/yarn npm: 6.14.11 - /usr/local/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman Managers: CocoaPods: 1.10.1 - /usr/local/bin/pod SDKs: iOS SDK: Platforms: iOS 14.3, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2 Android SDK: API Levels: 29, 30 Build Tools: 28.0.3, 29.0.2, 30.0.3 System Images: android-29 | Intel x86 Atom_64, android-29 | Google APIs Intel x86 Atom, android-29 | Google Play Intel x86 Atom, android-30 | Google APIs Intel x86 Atom, android-30 | Google Play Intel x86 Atom Android NDK: Not Found IDEs: Android Studio: 4.1 AI-201.8743.12.41.7042882 Xcode: 12.3/12C33 - /usr/bin/xcodebuild Languages: Java: 15.0.2 - /usr/bin/javac Python: 2.7.16 - /usr/bin/python npmPackages: @react-native-community/cli: Not Found react: 16.13.1 => 16.13.1 react-native: 0.63.3 => 0.63.3 react-native-macos: Not Found npmGlobalPackages: react-native: Not Found

Task :app:compileDebugJavaWithJavac FAILED

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0. Use ‘–warning-mode all’ to show the individual deprecation warnings. See https://docs.gradle.org/6.8/userguide/command_line_interface.html#sec:command_line_warnings 124 actionable tasks: 3 executed, 121 up-to-date /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/main/java/com/sapsana/app/MainApplication.java:21: error: cannot find symbol return BuildConfig.DEBUG; ^ symbol: variable BuildConfig /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/main/java/com/sapsana/app/MainApplication.java:60: error: cannot find symbol if (BuildConfig.DEBUG) { ^ symbol: variable BuildConfig location: class MainApplication /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/main/java/com/sapsana/app/MainApplication.java:60: error: illegal parenthesized expression if (BuildConfig.DEBUG) { ^ /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/main/java/com/sapsana/app/MainActivity.java:17: error: package R does not exist img.setImageDrawable(getDrawable(R.mipmap.ic_splash)); ^ Note: /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/debug/java/com/sapsana/app/ReactNativeFlipper.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. 4 errors

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ‘:app:compileDebugJavaWithJavac’.

Compilation failed; see the compiler error output for details.

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

• Get more help at https://help.gradle.org

BUILD FAILED in 52s

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Run CLI with --verbose flag for more details. Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081 /Users/oleg_sim/Documents/GitHub/mobile-app-source/android/app/src/main/java/com/sapsana/app/MainApplication.java:21: error: cannot find symbol

Please Help