'getConfig()' in 'com.baumblatt.capacitor.firebase.auth.CapacitorFirebaseAuth' clashes with 'getConfig()' in 'com.getcapacitor.Plugin'; attempting to use incompatible return type

[emaikongebm23]

I followed the instructions, the only difference is at my MainActivity.java, since I cannot use add() method, I changed it to registerPlugin() method.

I also tried to change com.getcapacitor.Config to com.getcapacitor.CapConfig until it produces another complicated error which I cannot solve straightforwardly.

Here is my package.json:

{
  "name": "bookeat",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "https://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "~10.0.0",
    "@angular/core": "~10.0.0",
    "@angular/forms": "~10.0.0",
    "@angular/platform-browser": "~10.0.0",
    "@angular/platform-browser-dynamic": "~10.0.0",
    "@angular/router": "~10.0.0",
    "@capacitor-community/admob": "^3.0.1",
    "@capacitor-community/contacts": "^0.1.1",
    "@capacitor-community/sqlite": "^2.9.16",
    "@capacitor/android": "3.0.1",
    "@capacitor/app": "1.0.1",
    "@capacitor/core": "^3.0.0-rc.4",
    "@capacitor/filesystem": "^1.0.1",
    "@capacitor/network": "^1.0.1",
    "@capacitor/storage": "^1.0.1",
    "@fortawesome/angular-fontawesome": "^0.8.1",
    "@fortawesome/fontawesome-svg-core": "^1.2.34",
    "@fortawesome/free-solid-svg-icons": "^5.15.2",
    "@ionic-native/core": "^5.0.0",
    "@ionic-native/deeplinks": "^5.32.0",
    "@ionic-native/local-notifications": "^5.31.1",
    "@ionic-native/native-audio": "^5.32.1",
    "@ionic-native/splash-screen": "^5.0.0",
    "@ionic-native/sqlite": "^5.33.0",
    "@ionic-native/status-bar": "^5.0.0",
    "@ionic/angular": "^5.0.0",
    "capacitor-firebase-auth": "^2.4.0",
    "cordova-play-services-version-adapter": "^1.1.0",
    "cordova-plugin-badge": "^0.8.8",
    "cordova-plugin-device": "^2.0.3",
    "cordova-plugin-local-notification": "^0.9.0-beta.2",
    "cordova-plugin-nativeaudio": "^3.0.9",
    "cordova-sqlite-storage": "^6.0.0",
    "firebase": "^8.0.0",
    "ionic-plugin-deeplinks": "^1.0.22",
    "jetifier": "^1.6.8",
    "ngx-mask-ionic": "^1.1.2",
    "phonegap-plugin-multidex": "^1.0.0",
    "rxjs": "~6.5.5",
    "tslib": "^2.0.0",
    "zone.js": "~0.10.3"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.1000.0",
    "@angular/cli": "~10.0.5",
    "@angular/compiler": "~10.0.0",
    "@angular/compiler-cli": "~10.0.0",
    "@angular/language-service": "~10.0.0",
    "@capacitor/cli": "^3.0.0-rc.4",
    "@ionic/angular-toolkit": "^2.3.0",
    "@types/jasmine": "~3.5.0",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "^12.11.1",
    "codelyzer": "^6.0.0",
    "jasmine-core": "~3.5.0",
    "jasmine-spec-reporter": "~5.0.0",
    "karma": "~5.0.0",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage-istanbul-reporter": "~3.0.2",
    "karma-jasmine": "~3.3.0",
    "karma-jasmine-html-reporter": "^1.5.0",
    "protractor": "~7.0.0",
    "ts-node": "~8.3.0",
    "tslint": "~6.1.0",
    "typescript": "~3.9.5"
  },
  "description": "An Ionic project"
}

build.gradle:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.2.1'
        classpath 'com.google.gms:google-services:4.3.8'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

apply from: "variables.gradle"

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

another build.gradle:

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion rootProject.ext.compileSdkVersion
    defaultConfig {
        applicationId "com.example.app"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        aaptOptions {
             // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
             // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
            ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

repositories {
    flatDir{
        dirs '../capacitor-cordova-android-plugins/src/main/libs', 'libs'
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation "androidx.appcompat:appcompat:$androidxAppCompatVersion"
    implementation project(':capacitor-android')
    testImplementation "junit:junit:$junitVersion"
    androidTestImplementation "androidx.test.ext:junit:$androidxJunitVersion"
    androidTestImplementation "androidx.test.espresso:espresso-core:$androidxEspressoCoreVersion"
    implementation project(':capacitor-cordova-android-plugins')
    implementation platform('com.google.firebase:firebase-bom:28.1.0')
    implementation 'com.google.firebase:firebase-analytics'
}

apply from: 'capacitor.build.gradle'

try {
    def servicesJSON = file('google-services.json')
    if (servicesJSON.text) {
        apply plugin: 'com.google.gms.google-services'
    }
} catch(Exception e) {
    logger.warn("google-services.json not found, google-services plugin not applied. Push Notifications won't work")
}

tsconfig.json:

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "module": "esnext",
    "moduleResolution": "node",
    "importHelpers": true,
    "target": "es2015",
    "lib": [
      "es2018",
      "dom"
    ],
    "esModuleInterop": true
  },
  "angularCompilerOptions": {
    "fullTemplateTypeCheck": true,
    "strictInjectionParameters": true
  }
}

capacitor.config.json:

{
  "appId": "com.example.app",
  "appName": "bookeat",
  "bundledWebRuntime": false,
  "npmClient": "npm",
  "webDir": "www",
  "plugins": {
    "SplashScreen": {
      "launchShowDuration": 0
    },
    "CapacitorFirebaseAuth": {
      "providers": [
        "google.com",
        "twitter.com",
        "facebook.com",
        "phone"
      ],
      "languageCode": "en",
      "nativeAuth": false,
      "properties": {
        "google": {}
      },
      "permissions": {
        "google": [
          "profile",
          "https://www.googleapis.com/auth/drive"
        ]
      }
    }
  },
  "cordova": {}
}

[Esteban-V]

Where you able to fix this?

[emaikongebm23]

@Esteban-V So far no, because of this project's deadline and other projects that I have to work on, I decided to drop this feature, but looking forward to the fix!

[MNorgren]

These are the same issues I am experiencing after upgrading to capacitor 3.0. I've tried upgrading to capacitor 3.0 several times now, and continue running into this error. Any idea on how I can resolve this?

Edit: I resolved my own issue by upgrading to 3.0.0-rc.0

[PerezCodeT]

Try putting this code in your MainActivity.java file

      import android.os.Bundle;
      import com.getcapacitor.BridgeActivity;
      import com.baumblatt.capacitor.firebase.auth.CapacitorFirebaseAuth;
      
      public class MainActivity extends BridgeActivity {
        @Override
        public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
      
          // Initializes the Bridge
          registerPlugin(CapacitorFirebaseAuth.class);
        }
      }

[willydavid1]

Thanks @PerezCodeT