npx react-native run-android does not work. "java.io.IOException: The filename, directory name, or volume label syntax is incorrect"

Question

Just recently ejected expo and I'm trying to run my app on an android device. I followed the instructions (hopefuly right) but I keep getting this error when I try to run my app:

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/6.0.1/userguide/command_line_interface.html#sec:command_line_warnings

FAILURE: Build failed with an exception.

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

  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.

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

BUILD FAILED in 3s

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

FAILURE: Build failed with an exception.

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

  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.

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

BUILD FAILED in 3s

at makeError (C:\Users\User\Documents\jad for eject\jad\jad\node_modules\execa\index.js:174:9)
at C:\Users\User\Documents\jad for eject\jad\jad\node_modules\execa\index.js:278:16
at processTicksAndRejections (internal/process/task_queues.js:97:5)
at async runOnAllDevices (C:\Users\User\Documents\jad for eject\jad\jad\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:5)
at async Command.handleAction (C:\Users\User\Documents\jad for eject\jad\jad\node_modules\@react-native-community\cli\build\index.js:186:9)

Answer 1

i am just using windows 7 32 bit i am also faced the same problem i solved like

you have local.properties file in your android folder or create one

in that file you have give sdk dir path like

give like this

sdk.dir=C:\\Users\\yourusername\\AppData\\Local\\Android\\Sdk

dont give like

sdk.dir=C:\Users\yourusername\AppData\Local\Android\Sdk

windows does not allow