Update compileSdkVersion

android/app/build.gradle

@@ -102,15 +102,15 @@ def enableSeparateBuildPerCPUArchitecture = false
 def enableProguardInReleaseBuilds = false
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion '23.0.1'
+    compileSdkVersion rootProject.ext.compileSdkVersion
+    buildToolsVersion rootProject.ext.buildToolsVersion
 
     defaultConfig {
         applicationId "de.gotify"
         minSdkVersion 16
-        targetSdkVersion 22
+        targetSdkVersion 27
         versionCode 1
-        versionName "1.0"
+        versionName "1.0.0"
         ndk {
             abiFilters "armeabi-v7a", "x86"
         }
@@ -149,10 +149,10 @@ dependencies {
     compile project(':react-native-device-info')
     compile project(':react-native-vector-icons')
     compile fileTree(include: ['*.jar'], dir: 'libs')
-    compile 'com.android.support:appcompat-v7:23.0.1'
+    compile 'com.android.support:appcompat-v7:27.1.1'
     compile 'com.squareup.okhttp3:okhttp:3.9.1'
     compile 'com.google.code.gson:gson:2.8.4'
-    compile 'com.facebook.react:react-native:+'
+    compile 'com.facebook.react:react-native:0.55.3'
     // From node_modules
 }
 

android/build.gradle

@@ -27,6 +27,11 @@ allprojects {
 
 }
 
+ext {
+    compileSdkVersion = 27
+    buildToolsVersion = '27.0.3'
+}
+
 subprojects {
     afterEvaluate {
         android {
@@ -34,5 +39,11 @@ subprojects {
                 abortOnError false
             }
         }
+        if (project.plugins.hasPlugin('android') || project.plugins.hasPlugin('android-library')) {
+            android {
+                compileSdkVersion rootProject.ext.compileSdkVersion
+                buildToolsVersion rootProject.ext.buildToolsVersion
+            }
+        }
     }
 }