Could not resolve all dependencies for configuration

Open your mouth and be relaxed , Spontaneous pyrotechnics cold

Android Generally, there will be 1 individual Project Of build.gradle and n individual Module Of build.gradle.

1. Source of problem

MPAndroidChart Integration of , As shown in the figure below ：

I made a mistake here today , Cause the above problems ：

//  Put it here Project Of build.gradle In file 
repositories {
    
    maven {
     url 'https://jitpack.io' }
}
//  Everyone knows that it is placed in Module Of build.gradle In file 
dependencies {
    
    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
}

Question 1

Why does it show up Could not resolve all dependencies for configuration The error? ？

First of all, let's take a look at Project Of build.gradle The content of the document ：

buildscript {
    
	//  Note that there 
    repositories {
    
     	maven {
     url 'https://jitpack.io' }
        google()
        jcenter()
    }
   ...
}

allprojects {
    
	// At the same time, Note that there 
    repositories {
    
        maven {
     url 'https://jitpack.io' }
        google()
        jcenter()
    }
}

We will find that buildscript and allprojects The label contains repositories.

The above error is only in buildscript Add below maven { url ‘https://jitpack.io’ } Caused by .

Question two

buildscript and allprojects Label under repositories What's the difference ？

Usually , Keep both the same .
buildscript yes Gradle Used by itself .
allprojects yes Used by the project module .

For details, please refer to ：buildscript and allprojects What are the functions and differences of the Internet ？

2. Solution

Through the above , We get it Project Of build.gradle The composition of the , The solution will naturally appear on the paper …

The safest way is ： keep buildscript and allprojects Of repositories The content is consistent .

3. Supplementary content

adopt StackOverFlow Solutions for There are many reasons for finding this problem . I hope this link can help you .