Flutter: Enable Flutter Outline view in Adroid Studio

 

1. Android Studio > Preferences > Languages & Frameworks > Flutter > App Execution > Open Flutter Inspector view on launch.
2. Close and Relaunch Android Studio > Open any Flutter Project > Open iOS Simulator or Android Emulator and Run Debug Mode.

Flutter: Configure Web Firebase

<script src="https://www.gstatic.com/firebasejs/8.3.0/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/8.3.0/firebase-analytics.js"></script>
<script src="https://www.gstatic.com/firebasejs/8.3.0/firebase-firestore.js"></script>
<script src="https://www.gstatic.com/firebasejs/8.3.0/firebase-auth.js"></script>

<script>
  // Your web app's Firebase configuration
  // For Firebase JS SDK v7.20.0 and later, measurementId is optional
  var firebaseConfig = {
    apiKey: "AIzaSyBMrhRJqdZBjqgOMjw-2lcsiIAyA5na3VU",
    authDomain: "fir-project-e1016.firebaseapp.com",
    databaseURL: "https://fir-project-e1016-default-rtdb.firebaseio.com",
    projectId: "fir-project-e1016",
    storageBucket: "fir-project-e1016.appspot.com",
    messagingSenderId: "65139327059",
    appId: "1:65139327059:web:1a6472ddc7655c174d46a6",
    measurementId: "G-LH4D913KNT"
  };
  // Initialize Firebase

  firebase.initializeApp(firebaseConfig);
  firebase.analytics();
  firebase.firestore();
</script>

Flutter: Running with unsound null safety

 

Update pubspec.yaml

analyzer:

  enable-experiment:
    - non-nullable

environment:
  sdk: '>=2.12.0 <3.0.0'

Configure Apache Virtual Host SSL & Virtual Host None SSL

 <VirtualHost *:443>

        ServerName xxx.com

        ServerAlias www.xxx.com

        DocumentRoot /var/www/xxx.com

        SSLEngine on

        SSLCertificateFile /etc/ssl/certs/xxx.crt

        SSLCertificateKeyFile /etc/ssl/private/xxx.key

    <Directory /var/www/ktechglobe.com>

        Options Indexes FollowSymLinks MultiViews

        AllowOverride All

        Require all granted

    </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log

        CustomLog ${APACHE_LOG_DIR}/access.log combined

</VirtualHost>

<VirtualHost *:80>

        ServerName xxx.com

        ServerAlias www.xxx.com

        #ServerAdmin webmaster@localhost

        DocumentRoot /var/www/xxx.com

        #Redirect permanent / https://www.xxx.com/

    <Directory /var/www/ktechglobe.com>

        Options Indexes FollowSymLinks MultiViews

        AllowOverride All

        Require all granted

    </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log

        CustomLog ${APACHE_LOG_DIR}/access.log combined

</VirtualHost>

Flutter: d8: cannot fit requested classes in a single dex file

Solution to fixed: d8-cannot-fit-requested-classes-in-a-single-dex-file 

android {

    defaultConfig {
        ...
        multiDexEnabled true
    }
    ...
}

dependencies {
  implementation 'com.android.support:multidex:1.0.3'
}

Xcode Uncategorized Command Codesign Failed With a Nonzero Exit Code

For me following steps worked:

1. Quit Xcode.
2. Open Terminal.
3. Typed Command xattr -rc /Users/manabkumarmal/Desktop/Projects/MyProjectHome
4. Open Xcode.
5. Cleaned.
6. Now worked and No Error.

Remote MYSQL Timeout (Ubuntu)

Run this:

netstat -plant|grep ":3306"|grep "LISTEN"

If it comes back with something like this:



tcp        0      127.0.0.1:3306              0.0.0.0:*               LISTEN      1881/mysql

This means that it's bound to local only. To fix this, follow the appropriate guide below for your distro.



If it shows something like this:



tcp        0      0.0.0.0:3306              0.0.0.0:*               LISTEN      1881/mysql

This means it's a firewall issue. Follow the Firewall guide below for your distro.