targetSdkVersion降为21

support包降为27.1.0

build.gradle

@@ -14,9 +14,9 @@ buildscript {
 }
 
 ext {
-    compileSdkVersion = 28
-    buildToolsVersion = compileSdkVersion+".0.0"
-    supportVersion = compileSdkVersion+".0.0"
+    compileSdkVersion = 27
+//    buildToolsVersion = compileSdkVersion+".0.0"
+    supportVersion = compileSdkVersion+".1.0"
 }
 
 allprojects {

libcore/build.gradle

@@ -4,8 +4,8 @@ android {
     compileSdkVersion rootProject.ext.compileSdkVersion
 
     defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 22
+        minSdkVersion 16
+        targetSdkVersion 21
         flavorDimensions "versionCode"
        /* ndk {
             moduleName "YGOMobile"

mobile/build.gradle

@@ -7,7 +7,7 @@ android {
     defaultConfig {
         applicationId "cn.garymb.ygomobile"
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 21
         versionCode 330701025
         versionName "3.3.7"
         flavorDimensions "versionCode"