Android Studio 3.2.1 Artifactresolveexception: Could Not Resolve All Artifacts for Configuration ':Classpath'

Android studio 3.2.1 ArtifactResolveException: Could not resolve all artifacts for configuration ':classpath'

Just turn off the Toggle Offline Mode .

On the top right side of the Window .

Click on Gradle
2nd number option(just near of Setting option)
click on it then you will be able to do work continuously.

As you can see the image

Flutter problems: Could not resolve all artifacts for configuration ':classpath'

You're trying to use actual Gradle. For Android development, there's Android Gradle which is currently on version 3.5.3 which came out this month. Read this article: https://developer.android.com/studio/releases/gradle-plugin#3-5-0.

EDIT: To use the latest version of Android Gradle (3.5.3), you need Gradle versions between 5.4.1-5.6.4 which you can configure in the gradle-wrapper.properties file. I guess Android Gradle doesn't yet support Gradle 6.

Could not resolve all dependencies for configuration ':classpath'

Right, I'm not sure if it will work for others but worked for me.

I changed proxyPort to 8080 and used jcenter instead of Maven. But I had to apply expeption to use HTTP instead of HTTPS. This is what I have in my build.gradle for build script and allprojects

buildscript {
  repositories {
    jcenter {
        url "http://jcenter.bintray.com/"
    }
  }
}

allprojects {
repositories {
    jcenter {
        url "http://jcenter.bintray.com/"
    }
  }
}

UPDATE: 06/08

I have recently updated Gradle and plugin version and had some problems. It was complaining about plugin com.android.application

I did some digging around and changed

 jcenter {
    url "http://jcenter.bintray.com/"
}

to

repositories {
    maven { url 'http://repo1.maven.org/maven2' }
}

react-native run-android, Could not resolve all artifacts for configuration ':classpath'

The problem was caused by my location. I had to use a tunnel for this. In that moment I created an SSH account here https://www.dynamicssh.com/create-ssh

1. With SSH credentials it is possible to set a local tunnel. I use Linux, so the tunnel can be set with this command.

   $ ssh -D 1337 -q -C -N youruser@yourserver.something

More details about it here: https://ma.ttias.be/socks-proxy-linux-ssh-bypass-content-filters/

In Windows, I think it is possible to use a tool called Bitvise SSH.

2. Defined the variables https_proxy and http_proxy on the terminal for localhost:1337 (The port is the one you use to set the tunnel in the previous step.) This is to use the tunnel in the terminal.

3. Then run the "react-native run-android", in the same terminal where https_proxy and http_proxy were set.

Thank to all who answered.

Best regards.

Could not resolve com.android.tools.build:gradle:3.2.1 on mac with android studio 3.3

Please update your android studio as well build:gradle with latest version.

Android Studio 3.4
Build #AI-183.5429.30.34.5452501, built on April 10, 2019
JRE: 1.8.0_152-release-1343-b01 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0

and

classpath 'com.android.tools.build:gradle:3.4.0'

Sometimes Issue might be possible due to version mismatching.

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