Can not deploy ionic project for generating android apk

Im trying to generate android apk from my ionic project but i faced with this error:

can anyone help me?

My ionic info is:

@ionic/cli-utils : 1.19.2
ionic (Ionic CLI) : 3.20.0

global packages:

cordova (Cordova CLI) : 8.0.0

local packages:

@ionic/app-scripts : 3.1.8
Cordova Platforms  : android 7.1.0
Ionic Framework    : ionic-angular 3.9.2


Android SDK Tools : 26.0.2
Node              : v8.10.0
npm               : 4.6.1
OS                : Windows 8.1

Environment Variables:



backend : pro

And :slight_smile:Installed platforms:
android 7.1.0
And my build.gradle file is also:

buildscript {
repositories {
maven {
url “
dependencies {

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


allprojects {
repositories {
maven {
url “
//This replaces w.r.t. build settings
project.ext {
defaultBuildToolsVersion=“27.0.1” //String
defaultMinSdkVersion=19 //Integer - Minimum requirement is Android 4.4
defaultTargetSdkVersion=27 //Integer - We ALWAYS target the latest by default
defaultCompileSdkVersion=27 //Integer - We ALWAYS compile with the latest by default

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

Is ionic cordova requirements happy?
Are you behind some kind of proxy?

Im not behind the proxy. i try a lot of times but it did not work.

I send my project information in my post.

can you help me?

No, not unless you answer my questions.

Can you open the URL the error message mentions manually in a browser?

Yes, I can opent the url and download it, but I changed my IP for doing this.
Because my ip was restricted for downloading that.
also I used this method when I was building my ionic project for getting apk.

What does that mean? Sounds like the obvious reason for your problem.