首先說一下MPAndroidChart,他是一個包含(柱狀圖,折線圖,餅狀圖)的第三方庫,但是今天在使用這個庫的使用出現了一個問題:

解決辦法:在專案的build.grdle中加入

maven { url "https://jitpack.io" }如圖所示

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.3'
 
// NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
}
}

allprojects {
    repositories {
        jcenter()
        //遠端倉庫
gradle.projectsEvaluated { tasks.withType(JavaCompile) { options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation" 
 
} }
        maven { url "https://github.com/J2W/mvn-repo-j2w/raw/master/repository" }
        maven { url "https://jitpack.io" }
    }
}

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