Android build gradle is too slow (Dependency Resolution)

Question

I've been working with Android Studio (my current version 1.5) for 2 years. Everything was OK, but when I downloaded Canary (2.1 p5), everything went wrong. Every time I want to create a new project or open a project or sync or import a new lib or dependency, gradle is taking too long to build — nearly 20 min.

I did not do anything, I just downloaded the Canary version and ran it.

Symptoms :

1. It happened when I connected to Internet
2. The first delay is on Gradle: Resolve dependencies ':app:_debugCompile'
3. ...
4. After 25 min building almost done

Note: When I disconnect my Internet, gradle will finish as fast as possible

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I tried to fix this by these ways:

1. I changed the gradle to offline work (it worked but I don't want this way, because I want to import libs or dependencies)

2. I've created a new file (file name is gradle.properties) in C:\Users\username\.gradle then wrote these lines into it

   org.gradle.parallel=true org.gradle.daemon=true 

3. I removed that version then installed my old version which worked OK but the problem was still there :(

4. Disable / Enable firewall

5. Disable / Enable AntiVirus (Nod32)

6. Reinstall Windows OS (8.1)

7. I've downloaded all versions (1.0.0, ..., 1.5.1, 2.0.0, 2.1)

8. I've used a proxy

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System info:

• CPU: Intel Core i5
• Ram: 6.00 GB
• OS: Windows 8.1 64 bit

---

build.gradle(Project:appName)

// 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:1.5.0'          // NOTE: Do not place your application dependencies here; they belong         // in the individual module build.gradle files     } }  allprojects {     repositories {         jcenter()     } }  task clean(type: Delete) {     delete rootProject.buildDir } 

gradle.build(Module:app)

apply plugin: 'com.android.application'  android {     compileSdkVersion 23     buildToolsVersion "23.0.3"      defaultConfig {         applicationId "com.example.test.myapplication"         minSdkVersion 14         targetSdkVersion 23         versionCode 1         versionName "1.0"     }     buildTypes {         release {             minifyEnabled false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'         }     } }  dependencies {     compile fileTree(include: ['*.jar'], dir: 'libs')     compile 'com.android.support:appcompat-v7:23.3.0' } 

Gradle report after building

Dependencies                  Duration All dependencies              14m3.43s :app:_releaseCompile          3m30.96s :app:_debugCompile            3m30.73s :app:_debugApk                3m30.69s :app:_releaseApk              3m30.62s :classpath                    0.428s :app:_debugAndroidTestCompile 0.001s :app:_debugAndroidTestApk     0s :app:_debugUnitTestApk        0s :app:_debugUnitTestCompile    0s :app:_releaseUnitTestApk      0s :app:_releaseUnitTestCompile  0s :app:releaseWearApp           0s :app:wearApp                  0s 

After installing android studio 2.0 stable version

• 7:23:47 PM Gradle sync started ====> 8:13:21 PM Gradle sync completed

Answer 1

The problem is solved !

After 2 days searching , I got the solution , so I would like to share with all people who may have the same problem. The problem is gradlecan not connect to center repository in some country. When you create a new project or import , your center repository is jcenter() by default and whenever you want to build or sync or add new external dependency, gradle is going to connect to https://bintray.com/ but it can not and the building process is going to wait till connect to jcenter(), so this process might take long time ( +30 min ) , even you can not add new dependency .

Solution :

1. Make sure you have latest stable version ( current 2.0.0 )
2. Make sure your gradle version is 2.0.0 in build.gradle (classpath 'com.android.tools.build:gradle:2.0.0')
3. Final step and most important one is change your jcenter() to mavenCentral()

So you can easily add new dependency and sync project under 3sec !

buildscript {     repositories {         mavenCentral()     }     dependencies {         classpath 'com.android.tools.build:gradle:2.0.0'          // NOTE: Do not place your application dependencies here; they belong         // in the individual module build.gradle files     } }  allprojects {     repositories {         mavenCentral()     } }  task clean(type: Delete) {     delete rootProject.buildDir } 

Have Fun

Answer 2

You could optimize the gradle build process ...

Try to put the gradle on offline mode forcing to build without any connection to external repositories, like this:

This helped me a lot, because in my work, all connections are behind a proxy and it increase the build time.

If this is not enough for you, take a time testing the options on the Gradle > Experimental ... Some options may improve you performance:

Note: In newer version of Android studio, View->Tool Windows->Gradle->Toggle button of online/offline