[Unity Android] Gradle Build에서 FireBase 사용하기 google-services.json is missing

다른 테스트중 아래 내용이 다를수도 있다.


Unity에서 Gradle Build를 사용하여 FireBase를 추가할 경우 
아래 FireBase Android 문서를 보고 내용을 추가하면 여러~ 에러가 발생한다.

• https://firebase.google.com/docs/cloud-messaging/android/first-message?hl=ko

문서는 Android를 사용하는 방법이니... 
우리는 Unity!!! 문서 내용은 사용하지 않으며, 과감히 지운다.

delete
// classpath 'com.google.gms:google-services:4.0.1'
//implementation "com.google.firebase:firebase-core:16.0.1"

//implementation 'com.google.firebase:firebase-messaging:17.1.0'

// ADD THIS AT THE BOTTOM

//apply plugin: 'com.google.gms.google-services'

* What went wrong:

Execution failed for task ':processReleaseGoogleServices'.

> File google-services.json is missing. The Google Services Plugin cannot function without it.

   Searched Location:

  C:\WORKSPACE\kor\Temp\gradleOut\src\nullnull\release\google-services.json

CommandInvokationFailure: Gradle build failed.

C:/Program Files/Java/jdk1.8.0_171\bin\java.exe -classpath "C:\Program Files\Unity\Hub\Editor\2018.2.2f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.2.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx2048m" "assembleRelease"

stderr[

FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':processReleaseGoogleServices'.

> File google-services.json is missing. The Google Services Plugin cannot function without it.

   Searched Location:

  C:\WORKSPACE\kor\Temp\gradleOut\src\nullnull\release\google-services.json

  C:\WORKSPACE\kor\Temp\gradleOut\src\release\nullnull\google-services.json

  C:\WORKSPACEkor\Temp\gradleOut\src\nullnull\google-services.json

  C:\WORKSPACE\kor\Temp\gradleOut\src\release\google-services.json

  C:\WORKSPACE\kor\Temp\gradleOut\src\nullnullRelease\google-services.json

  C:\WORKSPACE\kor\Temp\gradleOut\google-services.json

* 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 3s

]

stdout[

Configuration 'compile' in project ':' is deprecated. Use 'implementation' instead.

Could not find google-services.json while looking in [src/nullnull/debug, src/debug/nullnull, src/nullnull, src/debug, src/nullnullDebug]

registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)

Could not find google-services.json while looking in [src/nullnull/release, src/release/nullnull, src/nullnull, src/release, src/nullnullRelease]

registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)

:preBuild UP-TO-DATE

:Firebase:preBuild UP-TO-DATE

:Firebase:preReleaseBuild UP-TO-DATE