Ionic application build failed on android with errors

:app:processDebugManifest
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml:20:5-65 Error:
Element uses-permission#android.permission.CAMERA at AndroidManifest.xml:20:5-65 duplicated with element declared at AndroidManifest.xml:18:5-90

See http://g.co/androidstudio/manifest-merger for more information about the manifest merger.

:app:processDebugManifest FAILED
23 actionable tasks: 1 executed, 22 up-to-date
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml:21:5-85 Error:
Element uses-feature#android.hardware.camera at AndroidManifest.xml:21:5-85 duplicated with element
declared at AndroidManifest.xml:17:5-84
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml Error:
Validation failed, exiting

FAILURE: Build failed with an exception.

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

Manifest merger failed with multiple errors, see logs

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

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

BUILD FAILED in 15s
(node:5520) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: cmd: Command failed with exit code 1 Error output:
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml:20:5-65 Error:
Element uses-permission#android.permission.CAMERA at AndroidManifest.xml:20:5-65 duplicated with element declared at AndroidManifest.xml:18:5-90
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml:21:5-85 Error:
Element uses-feature#android.hardware.camera at AndroidManifest.xml:21:5-85 duplicated with element
declared at AndroidManifest.xml:17:5-84
D:\Projects\iCoinVeer\platforms\android\app\src\main\AndroidManifest.xml Error:
Validation failed, exiting

FAILURE: Build failed with an exception.

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

Manifest merger failed with multiple errors, see logs

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

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

BUILD FAILED in 15s
(node:5520) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.