react-native-i18n Will not build to Android

I installed the package and ran react-native link which successfully worked on iOS without any issues, but I cannot build to Android at all. When running react-native run-android, I get the following error:

Scanning folders for symlinks in /Users/timgc/Developer/ReactJS-local/adderpadjs/node_modules (13ms)
JS server already running.
Building and installing the app on the device (cd android && ./gradlew installDebug)...
File /Users/timgc/.android/repositories.cfg could not be loaded.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApk'.
   > A problem occurred configuring project ':react-native-i18n'.
      > Could not resolve all dependencies for configuration ':react-native-i18n:_debugPublishCopy'.
         > Could not find com.android.support:appcompat-v7:26.1.0.
           Searched in the following locations:
               file:/Users/timgc/Library/Android/sdk/extras/android/m2repository/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.pom
               file:/Users/timgc/Library/Android/sdk/extras/android/m2repository/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.jar
               file:/Users/timgc/Developer/ReactJS-local/adderpadjs/android/sdk-manager/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.jar
           Required by:
               adderpad:react-native-i18n:unspecified > com.facebook.react:react-native:0.56.0

I've tried using various build SDKs and still cannot get it to build.

My app/build.gradle file has the following...

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.3"

    defaultConfig {
        applicationId "com.adderpad"
        minSdkVersion 16
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        ndk {
            abiFilters "armeabi-v7a", "x86"
        }
    }

    // ...
}

dependencies {
    // ...
    compile "com.android.support:appcompat-v7:26.1.0"
}

Changing the appcompat version hasn't done anything for me. After running react-native link, I also verified that everything was linked correctly by following the manual link instructions in the README.

Is there an issue with the latest release of react-native-i8n that is causing this to not build on Android?

Aug 12 '18 17:08 timgcarlson

Have you seen in the README it states the build tools version must be higher than what you have?

Important: You'll need to install Android build tools 27.0.3

Aug 16 '18 13:08 benjaminreid

@benjaminreid Sorry, I should have copied my grade file when I was trying to use build tools 27.0.3, which I also could not get working. In fact, it would result in the same error message, Could not find com.android.support:appcompat-v7:26.1.0.

I downloaded the build tools in Preferences > System Settings > Android SDK > SDK Tools > Show Package Details and then uncheck all versions except 27.0.3. I then updated the app/build.gradle file to 27.0.3 but it still gave the same error verbatim.

Aug 17 '18 17:08 timgcarlson

@timgcarlson I just had the same problem and fixed it this way:

I modified my app/build.gradle to

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"

dependencies {
    compile project(':react-native-i18n')
    compile project(':react-native-tts')
    compile project(':react-native-vector-icons')
    compile fileTree(dir: "libs", include: ["*.jar"])
    compile "com.android.support:appcompat-v7:27.1.1"
    compile "com.facebook.react:react-native:+"  // From node_modules
}

Additionally I added the Google Maven repository to my Project build.gradle:

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

buildscript {
    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'

        // 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"
        }
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
}

I then ran react-native run-android again and it worked.