问找不到com.android.support:appcompat-v7:27.1.0

EN

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-image-crop-picker'.

Could not resolve all dependencies for configuration ':react-native-image-crop-picker:_debugPublishCopy'.

Could not find com.android.support:appcompat-v7:27.1.0.
Searched in the following locations:
           
file:/D:/AndroidSDK/extras/android/m2repository/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.pom
               
file:/D:/AndroidSDK/extras/android/m2repository/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.jar
               
file:/C:/Users/***/Desktop/LastDesign/InsurAgentApp/android/sdk-manager/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.jar
           
Required by:
InsurAgentApp:react-native-image-crop-picker:unspecified > com.facebook.react:react-native:0.54.2
Could not find com.android.support:appcompat-v7:27.1.0.
Searched in the following locations:
               
file:/D:/AndroidSDK/extras/android/m2repository/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.pom
               
file:/D:/AndroidSDK/extras/android/m2repository/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.jar
file:/C:/Users/***/Desktop/LastDesign/InsurAgentApp/android/sdk-manager/com/android/support/appcompat-v7/27.1.0/appcompat-v7-27.1.0.jar
Required by:
InsurAgentApp:react-native-image-crop-picker:unspecified > com.github.yalantis:ucrop:2.2.2-native

Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

apply plugin: 'com.android.library'

android {
  compileSdkVersion 27
  buildToolsVersion "27.0.3"

  defaultConfig {
    minSdkVersion 16
    targetSdkVersion 27
    versionCode 1
  }

  lintOptions {
    abortOnError false
  }

}

dependencies {
  compile 'com.facebook.react:react-native:+'
  compile 'com.github.yalantis:ucrop:2.2.2-native'
  compile 'id.zelory:compressor:2.1.0'

}