keep getting an error when I open android studio

Question

I recently installed Android Studio and when ever I start a new Project no matter what I keep getting this error :

Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/4.2.0-beta03/gradle-4.2.0-beta03.pom'. Received status code 403 from server: Forbidden
Disable Gradle 'offline mode' and sync project.

and offline mode doesn't work either . I really ran out of ideas . if anyone can help me please do. thanks. this is my build gradle :

    plugins {
    id 'com.android.application'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion 16
        targetSdkVersion 30
        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:1.2.0'
    implementation 'com.google.android.material:material:1.2.1'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}

and this is build.gradle :

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.2.0-beta03"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

and when I'm clicking on Offline mode this error appears :

A problem occurred configuring root project 'My Application'.
> Could not resolve all artifacts for configuration ':classpath'.
   > Could not resolve com.android.tools.build:gradle:4.2.0-beta03.
     Required by:
         project :
      > No cached version of com.android.tools.build:gradle:4.2.0-beta03 available for offline mode.
      > No cached version of com.android.tools.build:gradle:4.2.0-beta03 available for offline mode.
Possible solution:
 - Disable offline mode and rerun the build

can you please add your project's `build.gradle` here? You can find it inside your main project directory. — Deepanshu, Jan 18 '21 at 09:41
Have you enabled `offline mode`? If yes, please try after disabling it. — Deepanshu, Jan 18 '21 at 09:57
an error appears when I'm trying offline mode . you can see it now in the buttom of the main text. — Ali.hsz, Jan 18 '21 at 10:04
Please try `Invalidate Caches and Restart`. Keep offline mode disabled and wait for gradle files to sync after restart — Deepanshu, Jan 18 '21 at 11:51

score 0 · Answer 1 · answered Jan 18 '21 at 15:02

0

The always working and best solution is to delete the full application with the sdk's if you have any projects take a backup of them and reinstall android studio. That's the most easiest way.

answered Jan 18 '21 at 15:02

ItsRaptorman

101
8

score 0 · Answer 2 · answered Jan 18 '21 at 15:10

0

Try to disable gradle offline mode. You can find how to here: How to disable gradle 'offline mode' in android studio?. Then wait for gradle files to sync after restart.

answered Jan 18 '21 at 15:10

Nikola Stankovic

95
7

score 0 · Answer 3 · answered Jul 27 '21 at 06:52

0

Jcenter is no longer available.

You must replace all jcenter()s in you build.gradle with mavenCentral(). Also check your Internet connection(VPN) and proxies because it seems you have problems with your connection.

answered Jul 27 '21 at 06:52

Milad Faridnia

9,113
13
65
78

keep getting an error when I open android studio

3 Answers3