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  2. Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve

由 大兔子大兔子 提交于 2019-11-28 08:54:34

You might be importing Application instead of Module. Well you can change it in module's gradle also.

Change

apply plugin: 'com.android.application'

to

apply plugin: 'com.android.library'

You also need to remove applicationId from the gradle.

I think the problems comes from the following: The internet connection with u was unavailable so Android Studio asked you to enable the "offline work" and you just enabled it

To fix this:

  • File
  • Settings
  • Build, Execution, Deployment
  • Gradle
  • Uncheck offline work

why might unchecking the offline work solves the problem, because in the Gradle sometimes some dependencies need to update (the ones containing '+'), so internet connection is needed.

Prateek Bhandari

I just figured out how to remove this gradle error, follow the following steps.

  1. Go to "File".
  2. Click on Invalidate Cache/ Restart.
  3. Again click on Invalidate Cache / Restart(On dialoge window).

Let the gradle build without any interruption.

Thank You! Regards, hope this will help.

I had this issue with offline mode enable. I disabled offline mode and synced.

  • Open the Preferences, by clicking File > Settings.
  • In the left pane, click Build, Execution, Deployment > Gradle.
  • Uncheck the Offline work.
  • Apply changes and sync project again.
  1. Try "File"->"Invalidate Caches / Restart ..."
  2. Try to clean up your .gradle and .idea directory under your project root directory.

  3. Try to add Google Maven repository and sync project

    buildscript {
    repositories {
        jcenter()
        google()
        maven {
           url "https://maven.google.com"
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
           url "https://maven.google.com"
        }
    }
}

  4. If you are using Android Gradle Plugin 3.1.3, you should be sure that your gradle wrapper version is 4.4. Under the root directory of your project, find gradle-wrapper.properties and modify it as below.

    distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

I'm just sharing this answer because I had similar problem.

In the end, error was caused because I inadvertently changed the fileTree. In my case, I fixed by changing:

// implementation or compile
implementation fileTree(include: ['*.jar'])

to 

// implementation or compile
implementation fileTree(include: ['*.jar'], dir: 'libs')

I know its very late but I think it may help someone in resolving his issue.

In my case It was occurring because compileSdkVersion and targetSdkVersion was set to 29 while when I check my SDK Manager, It was showing that package is partially installed. Whereas SDK version 28 was completely installed. I changed my compileSdkVersion and targetSdkVersion to 28 along with support libraries.

Earlier: compileSdkVersion 29 targetSdkVersion 29 implementation 'com.android.support:appcompat-v7:29.+' implementation 'com.android.support:design:29.+'

After Modification: compileSdkVersion 28 targetSdkVersion 28 implementation 'com.android.support:appcompat-v7:28.+' implementation 'com.android.support:design:28.+'

It worked like a charm after applying these changes.

I was unable to find the root cause of the issue but got a workaround. I started by setting my the java home variable as such.

  • vi ~/.bash_profile (this is for macs only. bash profiles are different on linux)
  • type the letter i for insert and then set the JAVA_HOME variable as such
  • export JAVA_HOME=/Applications/Android\Studio.app/Contents/jre/jdk/Contents/Home/
  • quit the vi editor with esc then type :wq
  • Restart the computer
  • Voila! Your android studio projects should build without any qualms

In my case : When I setup AS, my windows was configured with proxy. Later, I disconnect proxy and disable proxy in AS settings, But, in file .gradle\gradle.properties - proxy - present

Just, in text editor clear proxy settings from this file

I had your issue, i fixed it . this error comes when your target api level is not completely downloaded . you have two ways: go to your SDK menu and download all of the android 9 components or the better way is go to your build.gradle(Module app) and change it like this:But remember, before applying these changes, make sure you have fully downloaded api lvl 8

Nishita

This can happen if you are using both 

'com.android.support:appcompat-v7:28.0.0-alpha3'
'com.android.support:support-v4:28.0.0-alpha3'

Remove the line 

implementation 'com.android.support:support-v4:28.0.0-alpha3'

from your build.gradle file and try again.

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android
android-gradle
build.gradle
android-studio-3.0
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