AS使用问题

使用Android Studio时导入项目提示更新gradle，同意更新后使用FindBugs出现

Error:Gradle: A problem occurred configuring root project 'k-9-5.201'.
> Could not resolve all files for configuration ':classpath'.
> Could not find com.android.tools.build:gradle:3.0.1.
Searched in the following locations:
https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.pom
https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.jar
Required by:
project :

解决方案：

https://stackoverflow.com/questions/25994163/could-not-resolve-all-dependencies-for-configuration-classpath

build.gradle 开头部分更改

buildscript {
    repositories {
        jcenter()
        google()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

完整的

buildscript {
    repositories {
        jcenter()
        google()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

project.ext {
    testCoverage = project.hasProperty('testCoverage')
    optimizeForDevelopment = project.hasProperty('optimizeForDevelopment') && optimizeForDevelopment == 'true'
}

subprojects {
    project.plugins.whenPluginAdded { plugin ->
        if ("com.android.build.gradle.AppPlugin".equals(plugin.class.name) ||
                "com.android.build.gradle.LibraryPlugin".equals(plugin.class.name)) {
            project.android.dexOptions.preDexLibraries = !rootProject.hasProperty('disablePreDex')
        }
    }
}