React-native run-android fails from terminal

D:\ReactNative\AwesomeProject>react-native run-android
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 Starting JS server…
info Launching emulator…
error Failed to launch emulator. Reason: No emulators found as an output of emulator -list-avds.
warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.
info Installing the app…
:ReactNative:Cannot run program "npx": CreateProcess error=2, The system cannot find the file specified
:ReactNative:Automatic import of native modules failed.

FAILURE: Build failed with an exception.

• Where:
  Script 'D:\ReactNative\AwesomeProject\node_modules@react-native-community\cli-platform-android\native_modules.gradle' line: 169

• What went wrong:
  A problem occurred evaluating script.

  Cannot invoke method getErrorStream() on null object

• 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 1s

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

FAILURE: Build failed with an exception.

• Where:
  Script 'D:\ReactNative\AwesomeProject\node_modules@react-native-community\cli-platform-android\native_modules.gradle' line: 169

• What went wrong:
  A problem occurred evaluating script.

  Cannot invoke method getErrorStream() on null object

• 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 1s

at checkExecSyncError (child_process.js:621:11)
at execFileSync (child_process.js:639:15)
at runOnAllDevices (D:\ReactNative\AwesomeProject\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:39)
at processTicksAndRejections (internal/process/task_queues.js:93:5)