升级gradle

library/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 29
@@ -85,5 +86,10 @@ dependencies {
     api "com.qiniu:qiniu-android-sdk:${qiniu}"
 
     api "org.greenrobot:eventbus:${eventbusVersion}"
+    implementation "androidx.core:core-ktx:+"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
 }
+repositories {
+    mavenCentral()
+}