Why isn't Gradle downloading the dependencies?

Question

I am trying to add this ColorPicker to my Android project.

I imported this library into my Java class:

import petrov.kristiyan.colorpicker.ColorPicker;

When I add it to Gradle and sync, I don't get any error.

But when I build the project, I get this error:

Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:checkDebugAarMetadata'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
   > Could not find petrov.kristiyan:colorpicker-library:1.1.10.
     Searched in the following locations:
       - https://dl.google.com/dl/android/maven2/petrov/kristiyan/colorpicker-library/1.1.10/colorpicker-library-1.1.10.pom
       - https://repo.maven.apache.org/maven2/petrov/kristiyan/colorpicker-library/1.1.10/colorpicker-library-1.1.10.pom
     Required by:
         project :app

Gradle Project file:

plugins {
    id 'com.android.application' version '7.3.1' apply false
    id 'com.android.library' version '7.3.1' apply false
}

Gradle App file:

plugins {
    id 'com.android.application'
}

android {
    namespace 'com.example.appname'
    compileSdk 33

    defaultConfig {
        applicationId "com.example.appname"
        minSdk 21
        targetSdk 33
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation 'androidx.appcompat:appcompat:1.5.1'
    implementation 'com.google.android.material:material:1.6.1'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
    implementation 'petrov.kristiyan:colorpicker-library:1.1.10'

    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

I have Android Studio version 2021.3.1 Patch 1 installed.

I followed the steps mentioned in this post, but it didn't work.

I am facing the same issue with this ColorPicker too.

Does anyone have any other solution to this problem?

z.g.y · Answer 1 · 2022-10-15T09:59:08.447

I tried pulling the library and had same results as yours. Looking at these 3 search results from the maven repository

Search Result 1

Search Result 2

Search Result 3

Looks like the repository hasn't been updated for years, have you considered looking for another color-picker library?, I'd recommend this one that I use.

Go Daddy Color Picker

Not sure though if the developers have an xml version of this, as this is targeted to Compose usage, but you can integrate composables to xml, and this picker returns an object that holds 4 properties of a Color, hue, saturation, alpha and value that you can use.

sergpetrov · Accepted Answer · 2022-10-15T15:28:21.373

It looks like the library is old and wasn't migrated to the Maven Central repository, since JCenter was deprecated.

But you can use it from Jitpack repository:

Add it in your root build.gradle at the end of repositories:

allprojects {
    repositories {
        ...
        maven { url 'https://jitpack.io' }
    }
}

Add the dependency to your app build.gradle:

dependencies {
    implementation 'com.github.kristiyanP:colorpicker:v1.1.10'
}

Enjoy!

Why isn't Gradle downloading the dependencies?

2 Answers2