title: React-Native: Could not resolve all dependencies for configuration ':app:debugCompileClasspath'
body: <p>I am kind of new to the react-native thing so please excuse me for maybe making stupid mistakes.</p>
  
  <p>I basically tried everything I could find before posting here and by now am not sure if this is something on my end (aka me being stupid) or a bug due to recent updates somewhere.</p>
  
  <p>So, my problem is the error message mentioned above which I am getting when trying to build the app (either by using <code>react-native run-android</code> or even with <code>gradlew clean</code>). I post the full error message below as well as my app/build.gradle, build.gradle and settings.gradle files.</p>
  
  <p>I left all the files the way they were created by "react-native init" and "just" added the commands I had to add according to the respective libraries' installation guides.</p>
  
  <p>Due to recent changes in the Firebase SDKs I had to change quite a bit when it comes to gradle version, etc. which is why I wonder if this issue has anything to do with that?!</p>
  
  <p>Oh, and the version numbers:</p>
  
  <pre><code>"dependencies": {
  "babel-core": "^6.26.3",
  "eslint": "^4.19.1",
  "fbjs": "^0.8.16",
  "react": "16.3.1",
  "react-native": "0.55.4",
  "react-native-firebase": "^4.1.0",
  "react-native-navigation": "^1.1.458",
  "react-native-vector-icons": "^4.6.0",
  "react-redux": "^5.0.7",
  "redux": "^4.0.0",
  "redux-logger": "^3.0.6",
  "redux-thunk": "^2.2.0"
  }
  </code></pre>
  
  <p>I installed every package with yarn (<code>yarn add react-native-vector-icons</code>, etc.) and npm (<code>npm install</code>, as well as <code>npm install react-native-vector-icons</code>, etc.) to make sure it's not related to any of those. In between I removed the whole node_modules folder of course.
  Neither did <code>react-native link</code> help.</p>
  
  <p>It's also not limited to the mentioned <code>react-native-vector-icons</code> package: I removed it from my project completely and the same error just pops up for another package.</p>
  
  <p>I appreciate any help and hints!</p>
  
  <p>Thank you very much in advance!</p>
  
  <p>Dustin</p>
  
  <p>ERROR MESSAGE:</p>
  
  <pre><code>FAILURE: Build failed with an exception.
  
      * What went wrong:
      A problem occurred configuring project ':app'.
      &gt; Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
         &gt; More than one variant of project :react-native-vector-icons matches the consumer attributes:
             - Configuration ':react-native-vector-icons:debugApiElements' variant android-aidl:
                 - Found artifactType 'android-aidl' but wasn't required.
                 - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
                 - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
                 - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found compatible value 'Aar'.
                 - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
             - Configuration ':react-native-vector-icons:debugApiElements' variant android-classes:
                 - Found artifactType 'android-classes' but wasn't required.
                 - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
                 - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
                 - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found compatible value 'Aar'.
                 - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
             - Configuration ':react-native-vector-icons:debugApiElements' variant android-manifest:
                 - Found artifactType 'android-manifest' but wasn't required.
                 - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
                 - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
                 - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found compatible value 'Aar'.
                 - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
             - Configuration ':react-native-vector-icons:debugApiElements' variant android-renderscript:
                 - Found artifactType 'android-renderscript' but wasn't required.
                 - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
                 - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
                 - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found compatible value 'Aar'.
                 - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
             - Configuration ':react-native-vector-icons:debugApiElements' variant jar:
                 - Found artifactType 'jar' but wasn't required.
                 - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
                 - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
                 - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found compatible value 'Aar'.
                 - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
  </code></pre>
  
  <p>APP/BUILD.GRADLE:</p>
  
  <pre><code>apply plugin: "com.android.application"
  
  import com.android.build.OutputFile
  
  /**
   * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
   * and bundleReleaseJsAndAssets).
   * These basically call `react-native bundle` with the correct arguments during the Android build
   * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the
   * bundle directly from the development server. Below you can see all the possible configurations
   * and their defaults. If you decide to add a configuration block, make sure to add it before the
   * `apply from: "../../node_modules/react-native/react.gradle"` line.
   *
   * project.ext.react = [
   *   // the name of the generated asset file containing your JS bundle
   *   bundleAssetName: "index.android.bundle",
   *
   *   // the entry file for bundle generation
   *   entryFile: "index.android.js",
   *
   *   // whether to bundle JS and assets in debug mode
   *   bundleInDebug: false,
   *
   *   // whether to bundle JS and assets in release mode
   *   bundleInRelease: true,
   *
   *   // whether to bundle JS and assets in another build variant (if configured).
   *   // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants
   *   // The configuration property can be in the following formats
   *   //         'bundleIn${productFlavor}${buildType}'
   *   //         'bundleIn${buildType}'
   *   // bundleInFreeDebug: true,
   *   // bundleInPaidRelease: true,
   *   // bundleInBeta: true,
   *
   *   // whether to disable dev mode in custom build variants (by default only disabled in release)
   *   // for example: to disable dev mode in the staging build type (if configured)
   *   devDisabledInStaging: true,
   *   // The configuration property can be in the following formats
   *   //         'devDisabledIn${productFlavor}${buildType}'
   *   //         'devDisabledIn${buildType}'
   *
   *   // the root of your project, i.e. where "package.json" lives
   *   root: "../../",
   *
   *   // where to put the JS bundle asset in debug mode
   *   jsBundleDirDebug: "$buildDir/intermediates/assets/debug",
   *
   *   // where to put the JS bundle asset in release mode
   *   jsBundleDirRelease: "$buildDir/intermediates/assets/release",
   *
   *   // where to put drawable resources / React Native assets, e.g. the ones you use via
   *   // require('./image.png')), in debug mode
   *   resourcesDirDebug: "$buildDir/intermediates/res/merged/debug",
   *
   *   // where to put drawable resources / React Native assets, e.g. the ones you use via
   *   // require('./image.png')), in release mode
   *   resourcesDirRelease: "$buildDir/intermediates/res/merged/release",
   *
   *   // by default the gradle tasks are skipped if none of the JS files or assets change; this means
   *   // that we don't look at files in android/ or ios/ to determine whether the tasks are up to
   *   // date; if you have any other folders that you want to ignore for performance reasons (gradle
   *   // indexes the entire tree), add them here. Alternatively, if you have JS files in android/
   *   // for example, you might want to remove it from here.
   *   inputExcludes: ["android/**", "ios/**"],
   *
   *   // override which node gets called and with what additional arguments
   *   nodeExecutableAndArgs: ["node"],
   *
   *   // supply additional arguments to the packager
   *   extraPackagerArgs: []
   * ]
   */
  
  project.ext.react = [
      entryFile: "index.js"
  ]
  
  apply from: "../../node_modules/react-native/react.gradle"
  apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"
  
  /**
   * Set this to true to create two separate APKs instead of one:
   *   - An APK that only works on ARM devices
   *   - An APK that only works on x86 devices
   * The advantage is the size of the APK is reduced by about 4MB.
   * Upload all the APKs to the Play Store and people will download
   * the correct one based on the CPU architecture of their device.
   */
  def enableSeparateBuildPerCPUArchitecture = false
  
  /**
   * Run Proguard to shrink the Java bytecode in release builds.
   */
  def enableProguardInReleaseBuilds = false
  
  android {
      compileSdkVersion 25
      buildToolsVersion "25.0.1"
  
      defaultConfig {
          applicationId "com.seroleashed.budgetmanager"
          minSdkVersion 19
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          ndk {
              abiFilters "armeabi-v7a", "x86"
          }
      }
      splits {
          abi {
              reset()
              enable enableSeparateBuildPerCPUArchitecture
              universalApk false  // If true, also generate a universal APK
              include "armeabi-v7a", "x86"
          }
      }
      buildTypes {
          release {
              minifyEnabled enableProguardInReleaseBuilds
              proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
          }
      }
      // applicationVariants are e.g. debug, release
      applicationVariants.all { variant -&gt;
          variant.outputs.each { output -&gt;
              // For each separate APK per architecture, set a unique version code as described here:
              // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
              def versionCodes = ["armeabi-v7a":1, "x86":2]
              def abi = output.getFilter(OutputFile.ABI)
              if (abi != null) {  // null for the universal-debug, universal-release variants
                  output.versionCodeOverride =
                          versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
              }
          }
      }
  }
  
  dependencies {
      compile project(':react-native-vector-icons')
      compile project(':react-native-navigation')
      compile(project(':react-native-firebase')) {
          transitive = false
      }
      implementation fileTree(dir: "libs", include: ["*.jar"])
      implementation project(':react-native-vector-icons')
      implementation project(':react-native-navigation')
      implementation "com.android.support:appcompat-v7:27.0.1"
      implementation "com.facebook.react:react-native:+"  // From node_modules
      implementation project(':react-native-firebase')
      // RNFirebase required dependencies
      implementation "com.google.android.gms:play-services-base:15.0.0"
      implementation "com.google.firebase:firebase-core:15.0.2"
      implementation "com.google.firebase:firebase-auth:15.1.0"
      implementation "com.google.firebase:firebase-database:15.0.0"
      implementation "com.google.firebase:firebase-messaging:15.0.2"
  }
  
  // Run this once to be able to run the application with BUCK
  // puts all compile dependencies into folder libs for BUCK to use
  task copyDownloadableDepsToLibs(type: Copy) {
      from configurations.compile
      into 'libs'
  }
  
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>BUILD.GRADLE:</p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
      repositories {
          jcenter()
          google()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.1.2'
          classpath 'com.google.gms:google-services:3.3.0'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          mavenLocal()
          jcenter()
          maven {
              // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
              url "$rootDir/../node_modules/react-native/android"
          }
  
          google()
      }
  }
  </code></pre>
  
  <p>SETTINGS.GRADLE:</p>
  
  <pre><code>rootProject.name = 'BudgetManager'
  include ':app'
  include ':react-native-vector-icons'
  project(':react-native-vector-icons').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-vector-icons/android')
  include ':react-native-navigation'
  project(':react-native-navigation').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-navigation/android/app')
  include ':react-native-firebase'
  project(':react-native-firebase').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-firebase/android')
  include ':react-native-vector-icons'
  project(':react-native-vector-icons').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-vector-icons/android')
  include ':react-native-navigation'
  project(':react-native-navigation').projectDir = new File(rootProject.projectDir, '../node_modules/react-native
  </code></pre>