Problem Generating APK on Android with Ionic 3

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Problem Generating APK on Android with Ionic 3

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#1 by (1 votes)

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Greetings fellow stackers, this time I'm studying the Ionic framework, reviewing the basic projects that the framework allows you to create by default with console commands. Using Visual Studio Code 1.21.1, as Android 7 base platform and with Ionic 3 version, having my basic project ready to build to get my apk, with the following config.xml file:

<?xml version='1.0' encoding='utf-8'?>
<widget id="io.ionic.starter" version="0.0.1" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
<name>myApp</name>
<description>An awesome Ionic/Cordova app.</description>
<author email="hi@ionicframework" href="http://ionicframework.com/">Ionic Framework Team</author>
<content src="index.html" />
<access origin="*" />
<allow-intent href="http://*/*" />
<allow-intent href="https://*/*" />
<allow-intent href="tel:*" />
<allow-intent href="sms:*" />
<allow-intent href="mailto:*" />
<allow-intent href="geo:*" />
<preference name="ScrollEnabled" value="false" />
<preference name="android-minSdkVersion" value="16" />
<preference name="BackupWebStorage" value="none" />
<preference name="SplashMaintainAspectRatio" value="true" />
<preference name="FadeSplashScreenDuration" value="300" />
<preference name="SplashShowOnlyFirstTime" value="false" />
<preference name="SplashScreen" value="screen" />
<preference name="SplashScreenDelay" value="3000" />
<platform name="android">
    <allow-intent href="market:*" />
    <icon density="ldpi" src="resources/android/icon/drawable-ldpi-icon.png" />
    <icon density="mdpi" src="resources/android/icon/drawable-mdpi-icon.png" />
    <icon density="hdpi" src="resources/android/icon/drawable-hdpi-icon.png" />
    <icon density="xhdpi" src="resources/android/icon/drawable-xhdpi-icon.png" />
    <icon density="xxhdpi" src="resources/android/icon/drawable-xxhdpi-icon.png" />
    <icon density="xxxhdpi" src="resources/android/icon/drawable-xxxhdpi-icon.png" />
    <splash density="land-ldpi" src="resources/android/splash/drawable-land-ldpi-screen.png" />
    <splash density="land-mdpi" src="resources/android/splash/drawable-land-mdpi-screen.png" />
    <splash density="land-hdpi" src="resources/android/splash/drawable-land-hdpi-screen.png" />
    <splash density="land-xhdpi" src="resources/android/splash/drawable-land-xhdpi-screen.png" />
    <splash density="land-xxhdpi" src="resources/android/splash/drawable-land-xxhdpi-screen.png" />
    <splash density="land-xxxhdpi" src="resources/android/splash/drawable-land-xxxhdpi-screen.png" />
    <splash density="port-ldpi" src="resources/android/splash/drawable-port-ldpi-screen.png" />
    <splash density="port-mdpi" src="resources/android/splash/drawable-port-mdpi-screen.png" />
    <splash density="port-hdpi" src="resources/android/splash/drawable-port-hdpi-screen.png" />
    <splash density="port-xhdpi" src="resources/android/splash/drawable-port-xhdpi-screen.png" />
    <splash density="port-xxhdpi" src="resources/android/splash/drawable-port-xxhdpi-screen.png" />
    <splash density="port-xxxhdpi" src="resources/android/splash/drawable-port-xxxhdpi-screen.png" />
</platform>
<platform name="ios">
    <allow-intent href="itms:*" />
    <allow-intent href="itms-apps:*" />
    <icon height="57" src="resources/ios/icon/icon.png" width="57" />
    <icon height="114" src="resources/ios/icon/[email protected]" width="114" />
    <icon height="40" src="resources/ios/icon/icon-40.png" width="40" />
    <icon height="80" src="resources/ios/icon/[email protected]" width="80" />
    <icon height="120" src="resources/ios/icon/[email protected]" width="120" />
    <icon height="50" src="resources/ios/icon/icon-50.png" width="50" />
    <icon height="100" src="resources/ios/icon/[email protected]" width="100" />
    <icon height="60" src="resources/ios/icon/icon-60.png" width="60" />
    <icon height="120" src="resources/ios/icon/[email protected]" width="120" />
    <icon height="180" src="resources/ios/icon/[email protected]" width="180" />
    <icon height="72" src="resources/ios/icon/icon-72.png" width="72" />
    <icon height="144" src="resources/ios/icon/[email protected]" width="144" />
    <icon height="76" src="resources/ios/icon/icon-76.png" width="76" />
    <icon height="152" src="resources/ios/icon/[email protected]" width="152" />
    <icon height="167" src="resources/ios/icon/[email protected]" width="167" />
    <icon height="29" src="resources/ios/icon/icon-small.png" width="29" />
    <icon height="58" src="resources/ios/icon/[email protected]" width="58" />
    <icon height="87" src="resources/ios/icon/[email protected]" width="87" />
    <icon height="1024" src="resources/ios/icon/icon-1024.png" width="1024" />
    <splash height="1136" src="resources/ios/splash/Default-568h@2x~iphone.png" width="640" />
    <splash height="1334" src="resources/ios/splash/Default-667h.png" width="750" />
    <splash height="2208" src="resources/ios/splash/Default-736h.png" width="1242" />
    <splash height="1242" src="resources/ios/splash/Default-Landscape-736h.png" width="2208" />
    <splash height="1536" src="resources/ios/splash/Default-Landscape@2x~ipad.png" width="2048" />
    <splash height="2048" src="resources/ios/splash/Default-Landscape@~ipadpro.png" width="2732" />
    <splash height="768" src="resources/ios/splash/Default-Landscape~ipad.png" width="1024" />
    <splash height="2048" src="resources/ios/splash/Default-Portrait@2x~ipad.png" width="1536" />
    <splash height="2732" src="resources/ios/splash/Default-Portrait@~ipadpro.png" width="2048" />
    <splash height="1024" src="resources/ios/splash/Default-Portrait~ipad.png" width="768" />
    <splash height="960" src="resources/ios/splash/Default@2x~iphone.png" width="640" />
    <splash height="480" src="resources/ios/splash/Default~iphone.png" width="320" />
    <splash height="2732" src="resources/ios/splash/Default@2x~universal~anyany.png" width="2732" />
</platform>
<plugin name="cordova-plugin-whitelist" spec="^1.3.3" />
<plugin name="cordova-plugin-device" spec="^2.0.1" />
<plugin name="cordova-plugin-splashscreen" spec="^5.0.2" />
<plugin name="cordova-plugin-ionic-webview" spec="^1.1.16" />
<plugin name="cordova-plugin-ionic-keyboard" spec="^2.0.5" />
<engine name="android" spec="^7.0.0" /></widget>

Using the following commands:

cordova platform add [email protected]
cordova build android

So far I have not been able to get my apk file to view my app on my phone, getting the next output by console:

C:\Users\Documents\IonicApp\myApp>cordova build android
Android Studio project detected
ANDROID_HOME=C:\Program Files (x86)\Android\android-sdk
JAVA_HOME=C:\Program Files\Java\jdk1.8.0_111
studio
(node:8068) UnhandledPromiseRejectionWarning: Unhandled promise rejection 
(rejection id: 1): TypeError: Cannot read property 'length' of undefined

I have tried deleting package.lock.json, plugin and platform, then running the following commands:

npm install
cordova prepare --save

Without achieving any success.

If someone has any clue or idea on how to solve this problem, I will be very grateful that you share it, I am attentive to your answers. Thanks for your time.

android cordova ionic-framework apk ionic3

asked by Gutierrez 11.04.2018 в 06:31

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1 answer

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score 1 · Accepted Answer

Your problem seems to be complex and with multiple solutions let's go in parts.
The first thing is that you generate an error this according to the information I found is an error in Cordoba, and the most feasible solution is to downgrade to version 7.1.0 or 6.4.0 with the help of the following command ionic cordova platform add [email protected] I attach a link to github on the topic link

The second error tells you that the lenght property could not be read, so I leave you a possible solution

I hope I help you