Common or rare errors in php, Drupal, nodejs, magento

Invalid key hash facebook android does not match any stored ionic 2 http://stackoverflow.com/questions/20301025/facebook-key-hash-does-not-match-any-stored-key-hashes

Application error the connection to the server was unsuccessful ionic 2 Resolved In my index.html I removed the link '<script src = "http://maps.googleapis.com/maps/api/js?sensor=false"> </ script>' and in my config.xml file I added ' < preference name = "loadUrlTimeoutValue" value = "700000" /> ' Thank you for trying to help

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

http://stackoverflow.com/questions/35620042/send-user-to-page-on-mobile-app-when-clicking-email-link

ionic 2 angular 2 form validation https://www.joshmorony.com/advanced-forms-validation-in-ionic-2/

If faced error while building ionic build android then got to this path on mac and delete everything /var/root/.gradle/wrapper/dists/gradle-2.14.1-all/ /var/root/.gradle/wrapper/dists/gradle-2.14.1-all/ nzipping  /var/root/.gradle/wrapper/dists/gradle-2.14.1-all/53l0mv9mggp9q5m2ip574m21oh/gradle-2.14.1-all.zip  to  /var/root/.gradle/wrapper/dists/gradle-2.14.1-all/53l0mv9mggp9q5m2ip574m21oh Exception in thread "main"  java.lang.RuntimeException: java.util.zip.ZipException: error in opening zip file at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:78) at org.gradle.wrapper.Install.createDist(Install.java:47) at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129) at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:48) Caused by: java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile

Inside conference app ionic To navigate between pages class type in .ts file in ionic 2 where class type in export Use Nav import { Events, MenuController, Nav, Platform } from 'ionic-angular'; right in start of declaration of class export class ConferenceApp {   // the root nav is a child of the root app component   // @ViewChild(Nav) gets a reference to the app's root nav   @ViewChild(Nav) nav: Nav;

create modal in ionic 2 angular 2 from parent page signIn() {     let data = { 'foo': 'bar' };     let modal = this.modalCtrl.create(LoginPage);     modal.present();     modal.onDidDismiss( (data : any) => {      //console.log(data.loggedin);      this.navCtrl.push(TabsPage);    });    //modal.onDidDismiss(() => {       //console.log("abcdef");     //});   } inside modal page setTimeout(() => {           //this.navCtrl.pop();           // Close modal           let data = { 'loggedin': 'yes' };           this.viewCtrl.dismiss(data);       }, 500);

Angular 2 tutorial : https://www.tutorialspoint.com/angular2/ ionic 2 and angular 2 : https://scotch.io/tutorials/build-a-mobile-app-with-angular-2-and-ionic-2 login application ionic 2 angular 2 : https://devdactic.com/login-ionic-2/ learn service app : https://github.com/gangachris/githubionic