Unity Gradle build未能找到build Tools版本28.0.0

Question

我已经在这个问题上挣扎了几天，我似乎找不到解决它的方法，以下是完整的错误：

CommandInvokationFailure: Gradle build failed. 
C:/Program Files/Java/jdk1.8.0_131\bin\java.exe -classpath "C:\Program Files\Unity2017.2\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-2.14.jar" org.gradle.launcher.GradleMain "assembleDebug"

stderr[

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'gradleOut'.
> failed to find Build Tools revision 28.0.0

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

BUILD FAILED

Total time: 2.877 secs
]
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.GradleWrapper.RunJava (System.String args, System.String workingdir, UnityEditor.Android.Progress progress)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.RunJava (System.String args, System.String workingdir, UnityEditor.Android.Progress progress)
UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, UnityEditor.Android.Progress 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)

以下是我的评分。构建内容：

// GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN
buildscript {
    repositories {
        jcenter()
    }

    dependencies {

        classpath 'com.android.tools.build:gradle:2.1.0'
    }
}

allprojects {
   repositories {
      flatDir {
        dirs 'libs'
      }
   }
}

apply plugin: 'com.android.application'

dependencies {
    compile 'com.android.support:multidex:1.0.1'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile(name: 'android.arch.core.runtime-1.1.0', ext:'aar')
    compile(name: 'android.arch.lifecycle.livedata-core-1.1.0', ext:'aar')
    compile(name: 'android.arch.lifecycle.runtime-1.1.0', ext:'aar')
    compile(name: 'android.arch.lifecycle.viewmodel-1.1.0', ext:'aar')
    compile(name: 'cardview-v7-25.3.1', ext:'aar')
    compile(name: 'com.android.support.animated-vector-drawable-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.appcompat-v7-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.asynclayoutinflater-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.cardview-v7-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.coordinatorlayout-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.cursoradapter-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.customtabs-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.customview-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.documentfile-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.drawerlayout-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.interpolator-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.loader-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.localbroadcastmanager-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.percent-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.print-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.recyclerview-v7-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.slidingpanelayout-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-compat-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-core-ui-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-core-utils-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-fragment-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-media-compat-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-v4-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.support-vector-drawable-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.swiperefreshlayout-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.android.support.viewpager-28.0.0-alpha1', ext:'aar')
    compile(name: 'com.github.vungle.vungle-android-sdk-5.3.0', ext:'aar')
    compile(name: 'com.google.ads.mediation.unity-2.1.2.0', ext:'aar')
    compile(name: 'com.google.ads.mediation.vungle-5.3.0.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-ads-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-ads-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-ads-lite-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-ads-lite-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-base-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-base-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-basement-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-basement-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-gass-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-gass-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-gcm-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-gcm-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-iid-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-iid-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-location-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-location-license-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-tasks-11.8.0', ext:'aar')
    compile(name: 'com.google.android.gms.play-services-tasks-license-11.8.0', ext:'aar')
    compile(name: 'com.sglib.easymobile.easy-mobile-1.0.2', ext:'aar')
    compile(name: 'com.unity3d.ads.unity-ads-2.1.2', ext:'aar')
    compile(name: 'common', ext:'aar')
    compile(name: 'constraint-layout-1.0.2', ext:'aar')
    compile(name: 'GoogleAIDL', ext:'aar')
    compile(name: 'GooglePlay', ext:'aar')
    compile(name: 'onesignal-unity', ext:'aar')
    compile(name: 'percent-25.3.1', ext:'aar')
    compile(name: 'unity-ads', ext:'aar')
    compile project(':answers')
    compile project(':beta')
    compile project(':crashlytics')
    compile project(':crashlytics-wrapper')
    compile project(':fabric')
    compile project(':fabric-init')
    compile project(':GoogleMobileAdsPlugin')
    compile project(':OneSignalConfig')
}

android {
    compileSdkVersion 21
    buildToolsVersion '28.0.0'

    defaultConfig {
        multiDexEnabled true
        targetSdkVersion 21
        applicationId 'com.chorusworldwide.upjump'
    }

    lintOptions {
        abortOnError false
    }

    aaptOptions {
        noCompress '.unity3d', '.ress', '.resource', '.obb'
    }


    buildTypes {
        debug {
            minifyEnabled false
            useProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'
            jniDebuggable true
        }
        release {
            minifyEnabled true
            useProguard true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-unity.txt'

        }
    }

}

我还将自己的gradle.build文件添加到plugin/Android中，该文件是相同的，但不同的BuildToolsVersion设置为27.0.0，但是，位于项目中Temp文件夹中的build.gradle文件仍然将自己重置为“28”，

更新：从构建工具中删除28.0.0-rc1后，build.gradle开始使用版本27构建，但现在出现了一个新的错误：

CommandInvokationFailure: Gradle build failed.
C:/Program Files/Java/jdk1.8.0_131\bin\java.exe -classpath "C:\Program Files\Unity2017.2\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-2.14.jar" org.gradle.launcher.GradleMain "assembleDebug"
stderr[
C:\Projects\UpJump\Temp\gradleOut\build\intermediates\exploded-aar\com.android.support.appcompat-v7-28.0.0-alpha1\res\values-v28\values-v28.xml:5:5-8:13: AAPT: No resource found that matches the given name (at 'dialogCornerRadius' with value '?android:attr/dialogCornerRadius').

FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':processDebugResources'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'D:\DevTools\New_SDK\build-tools\27.0.0\aapt.exe'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
]

Answer 1

Awrightiv的回答让我大吃一惊。但对我来说，解决办法就没那么复杂了。我生成了一个maintemplate.gradle文件，当您在播放器设置中打开“使用自定义gradle文件”时，unity会创建该文件，并更改了buildToolsVersion行。

资产/plugins/android/maintemplate.gradle中的原始一行：

buildtoolsversion'**buildtools**'