###前提・実現したいこと
UnityでAndroidアプリを作っています
一通り作り、Buildしようとしたら以下のエラーメッセージが発生しました
###発生している問題・エラーメッセージ
CommandInvokationFailure: Gradle build failed. C:/Program Files/Android/Android Studio/jre\bin\java.exe -classpath "C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.0.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx2048m" "assembleRelease" stderr[ FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'gradleOut'. > Could not resolve all files for configuration ':classpath'. > Could not resolve com.android.tools.build:gradle:2.3.0. Required by: project : > Could not resolve com.android.tools.build:gradle:2.3.0. > Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/2.3.0/gradle-2.3.0.pom'. > Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/2.3.0/gradle-2.3.0.pom'. > jcenter.bintray.com * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED in 4s ] stdout[ ] exit code: 1 UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1 progress, System.String error) UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action`1 progress) Rethrow as GradleInvokationException: Gradle build failed UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action`1 progress) UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
###該当のソースコード
###補足情報(言語/FW/ツール等のバージョンなど)
Unityは
2017.3.0f3
Android Studioは
3.0.1
です。よろしくお願いします