Launching lib\main.dart on sdk gphone x86 in debug mode...
Parameter format not correct -
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-1.2.1\android\src\main\java\io\flutter\plugins\firebase\core\FlutterFirebaseCorePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_auth-1.3.0\android\src\main\java\io\flutter\plugins\firebase\auth\FlutterFirebaseAuthPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\flutter_local_notifications-5.0.0+1\android\src\main\java\com\dexterous\flutterlocalnotifications\FlutterLocalNotificationsPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\google_maps_flutter-2.0.3\android\src\main\java\io\flutter\plugins\googlemaps\Convert.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\google_maps_flutter-2.0.3\android\src\main\java\io\flutter\plugins\googlemaps\TileProviderController.java uses unchecked or unsafe operations.

Note: Recompile with -Xlint:unchecked for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\google_sign_in-4.5.9\android\src\main\java\io\flutter\plugins\googlesignin\GoogleSignInPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_cropper-1.4.1\android\src\main\java\vn\hunghd\flutter\plugins\imagecropper\ImageCropperPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\launch_review-3.0.1\android\src\main\java\com\iyaffle\launchreview\LaunchReviewPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> 1 exception was raised by workers:
  java.lang.RuntimeException: Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar (com.google.guava:guava:20.0) and listenablefuture-1.0.jar (com.google.guava:listenablefuture:1.0)

  Go to the documentation to learn how to <a href="d.android.com/r/tools/classpath-sync-errors">Fix dependency resolution errors</a>.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 48s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

Solution

Step 1. Added implementation ‘com.google.guava:guava:27.0.1-android’ at the end of my android/app/build.gradle file and the error went away.

Source:- Stackoverflow

Step 2. Run flutter clean, flutter pub get and run your project.

That’s all.

I hope it fixed your error.

Keep Coding.

In this case, Android 11 was introduced <queries> as a manifest element, and older versions of the Android Gradle Plugin do not know about that element.

PROBLEM

Launching lib\main.dart on sdk gphone x86 in debug mode...
Parameter format not correct -

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > Android resource linking failed
     C:\Users\MyUserName\.gradle\daemon\6.5\Apps\my\app-android\build\flutter_inappwebview\intermediates\library_manifest\debug\AndroidManifest.xml:7:5-11:15: <strong>AAPT: error: unexpected element <queries> found in <manifest>.</strong>


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 41s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

SOLUTION

I had this issue in flutter but I believe this solution will work for both flutter and native android dev.

Follow these steps

Step 1. Read this short blog to get some understanding: click here

Step 2. Delete the .gradle folder inside the android folder i.e., android / .gradle.

Step 3. See the above image from the step1 blog and upgrade the classpath in the android/build.gradle file. I’ve upgraded from classpath ‘com.android.tools.build:gradle:3.5.0’ to classpath ‘com.android.tools.build:gradle:3.5.4’ with the help of the above image.

Step 4. You can invalidate caches and restart your android studio. Make sure you have a good internet connection because it will download the new Gradle files or just run flutter clean and flutter pub get and run your project.

Note:- if your error is not solved then look at this thread once, Source: StackOverflow.

After following the above 4 Steps, my error is gone but after running the project, I found a new error i.e., Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules guava-20.0.jar , have a look if you found it too.

That’s all.

I hope it fixed your Error.

Keep Coding.

sudo /opt/lampp/lampp restart
Starting XAMPP for Linux 7.2.34-0…
XAMPP: Starting Apache…/opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
/opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.
XAMPP: Starting MySQL…/opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.
XAMPP: Starting ProFTPD…/opt/lampp/share/xampp/xampplib: line 22: netstat: command not found
ok.

How can I solve this problem with xampplib and how can I get the xampp to work?

Solution

It seems that your xampp instance is complaining about a lack of netstat command.

netstat is a part of the net-tools package, so run this command to install netstat:

sudo apt install net-tools

Then try to start your xampp again, it should work now.

That’s all, I hope this article helps you to solve your problem.

Keep Exploring.

Thanks for reading.

When I run Composer update in my project then I got this error.

[ErrorException]
  file_put_contents(./composer.lock): failed to open stream: Permission denied

Solution

It can be resolved with the following command:

sudo chown -R $USER ~/.composer/

That’s all.

I hope this article helps you to fix your issue.

Thanks for reading.

Keep Exploring.

I’m getting this error after migrating my laravel project to linux server, see error below

UnexpectedValueException: The stream or file "/opt/lampp/htdocs/testproject/storage/logs/laravel-2021-08-31.log" could not be opened in append mode: failed to open stream: Permission denied in file /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 110
Stack trace:
  1. UnexpectedValueException->() /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:110
  2. Monolog\Handler\StreamHandler->write() /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Handler/RotatingFileHandler.php:120
  3. Monolog\Handler\RotatingFileHandler->write() /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php:39
  4. Monolog\Handler\AbstractProcessingHandler->handle() /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Logger.php:344
  5. Monolog\Logger->addRecord() /opt/lampp/htdocs/testproject/vendor/monolog/monolog/src/Monolog/Logger.php:712
  6. Monolog\Logger->error() /opt/lampp/htdocs/testproject/vendor/laravel/framework/src/Illuminate/Log/Logger.php:176
  7. Illuminate\Log\Logger->writeLog() /opt/lampp/htdocs/testproject/vendor/laravel/framework/src/Illuminate/Log/Logger.php:87
  8. Illuminate\Log\Logger->error() /opt/lampp/htdocs/testproject/vendor/laravel/framework/src/Illuminate/Log/LogManager.php:500
  9. Illuminate\Log\LogManager->error() /opt/lampp/htdocs/testproject/vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php:118
 10. Illuminate\Foundation\Exceptions\Handler->report() /opt/lampp/htdocs/testproject/app/Exceptions/Handler.php:37
 11. App\Exceptions\Handler->report() /opt/lampp/htdocs/testproject/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/HandleExceptions.php:92
 12. Illuminate\Foundation\Bootstrap\HandleExceptions->handleException() [internal]:0

Solution

the error is that, Storage folder doesn’t have permission to write log files, you can run

 chmod -R o+w projectname/storage
 chmod -R o+w projectname/bootstrap

if you are using nginx then you need to use nginx user permission like below

sudo chown -R nginx:root storage
sudo chown -R nginx:root bootstrap

That’s All.

I hope this article helps you to solve the problem.

Thanks for reading.

Keep Exploring.

composer create-project --prefer-dist laravel/laravel testingcronjob "5.8.*"

Step 2 :- Now, we need to create a custom command. Custom command will execute with task scheduling cron job. Run the below command to create new custom command

php artisan make:command DemoCron --command=demo:cron

Now we make some changes on Command file.

app/Console/Commands/DemoCron.php

<?php
   
namespace App\Console\Commands;
   
use Illuminate\Console\Command;
   
class DemoCron extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'demo:cron';
    
    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';
    
    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }
    
    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        \Log::info("Cron is working fine!");
     
        /*
           Write your database logic we bellow:
           Item::create(['name'=>'hello new']);
        */
      
        $this->info('Demo:Cron Cummand Run successfully!');
    }
}

Step 3 :- Now, we need to define our commands on Kernel.php file with time when you want to run your command like as bellow functions:

app/Console/Kernel.php

<?php
   
namespace App\Console;
    
use Illuminate\Console\Scheduling\Schedule;
use Illuminate\Foundation\Console\Kernel as ConsoleKernel;
    
class Kernel extends ConsoleKernel
{
    /**
     * The Artisan commands provided by your application.
     *
     * @var array
     */
    protected $commands = [
        Commands\DemoCron::class,
    ];
     
    /**
     * Define the application's command schedule.
     *
     * @param  \Illuminate\Console\Scheduling\Schedule  $schedule
     * @return void
     */
    protected function schedule(Schedule $schedule)
    {
        $schedule->command('demo:cron')
                 ->everyMinute();
    }
     
    /**
     * Register the commands for the application.
     *
     * @return void
     */
    protected function commands()
    {
        $this->load(__DIR__.'/Commands');
     
        require base_path('routes/console.php');
    }
}

Step 4 :- Now We’re ready to run our cron. You can manually check using following command of your cron.Run bellow command:

php artisan schedule:run

After running above command, now you can check log file where we already print some text. So open your log file it looks like as bellow:

storage/logs/laravel-2021-08-16.php

Now our Cron is Working fine, But we want to run cron at every minute in our Linux Server, So for that folow the below Steps.

========================= NOTE START ==========================

Crontab Date / Time Format

 * * * * *  command to execute
 │ │ │ │ │
 │ │ │ │ │
 │ │ │ │ └───── day of week(0-6)(0 to 6 are Sunday to Saturday, or use names; 7 is Sunday, the same as 0)
 │ │ │ └────────── month (1 - 12)
 │ │ └─────────────── day of month (1 - 31)
 │ └──────────────────── hour (0 - 23)
 └───────────────────────── min (0 - 59)

========================= NOTE END ==========================

Step 5 :- Now login into your server and navigate to /etc and run below command

sudo crontab -e

After running command you’ll get output like below image, just select easiest

In my case it’s 2, so I typed 2 and hit enter.

now add single entry on crontab file

* * * * * php /path/to/artisan schedule:run 1>> /dev/null 2>&1


OR

* * * * * cd /path-to-your-project && php artisan schedule:run >> /dev/null 2>&1

I’m running on my linux server so i’ve added path to my artisan file of my laravel project, see below

my code

* * * * * php /opt/lampp/htdocs/testingcronjob/artisan schedule:run 1>> /dev/null 2>&1

It’s Done. I hope this article help you.

Keep Exploring.

Thanks for reading.

So i’m providing a complete list of each folder’s and sub-folder’s permissions.

1. storage – 755.
   
   
2. storage/app – 755.
   storage/app/public – 755.
   
   
3. storage/framework – 755.
   storage/framework/views – 777.
   storage/framework/testing – 755.
   storage/framework/sessions – 777.
   storage/framework/cache – 755.
   
4. storage/logs – 755.

That’s all. Hope this article will solved your problem.

Keep Exploring.

Thanks for reading.

To find public ip address in windows just visit the below website it will show you the ip.

https://www.whatismyip.com

For linux

If you are using terminal and want to find your public ip address, then you have to run the below command in your terminal

wget –O – –q https://checkip.amazonaws.com

curl –s https://icanhazip.com

Step 1 :- first Stop the server from running by below command

sudo /opt/lampp/lampp stop

Step 2 :- Now run below command to uninstall Xampp.

sudo /opt/lampp/uninstall

Step 3 :- Now run the below command to remove Xampp All leftover files.

sudo rm -r /opt/lampp

As you can see in the screenshot, after running the command all files are removed and when xampp is also not starting, it means xampp is successfully uninstalled from our linux machine.

That’s All. I hope this article helps you to uninstall xampp.

Keep Exploring.

Thanks for reading.

Step 1 :- Login to your (Ubuntu) Machine.

Step 2 :- run the below command to download Xampp.

wget https://downloadsapachefriends.global.ssl.fastly.net/7.4.22/xampp-linux-x64-7.4.22-0-installer.run

Step 3 :- Go to root user by entering below command

sudo -s

Step 4 :- Now we give permission to execute to the downloaded xampp file. For that run,

chmod 755 xampp-linux-x64-7.4.22-0-installer.run

Step 5 :- Now, we run the downloaded file for installation, for that run

sudo ./xampp-linux-x64-7.4.22-0-installer.run

Output

root@sushant-VirtualBox:/home/sushant# sudo ./xampp-linux-x64-7.4.22-0-installer.run
----------------------------------------------------------------------------
Welcome to the XAMPP Setup Wizard.

----------------------------------------------------------------------------
Select the components you want to install; clear the components you do not want
to install. Click Next when you are ready to continue.

XAMPP Core Files : Y (Cannot be edited)

XAMPP Developer Files [Y/n] :y

Is the selection above correct? [Y/n]: y

----------------------------------------------------------------------------
Installation Directory

XAMPP will be installed to /opt/lampp
Press [Enter] to continue:

----------------------------------------------------------------------------
Setup is now ready to begin installing XAMPP on your computer.

Do you want to continue? [Y/n]: y

----------------------------------------------------------------------------
Please wait while Setup installs XAMPP on your computer.

 Installing
 0% ______________ 50% ______________ 100%
 #########################################

----------------------------------------------------------------------------
Setup has finished installing XAMPP on your computer.

root@sushant-VirtualBox:/home/sushant#

Step 6 :- Installation Done. Now we want to start server for that run,

sudo /opt/lampp/lampp start

List of commands to start, stop and restart server

To Start Server :- sudo /opt/lampp/lampp start

To Stop Server :- sudo /opt/lampp/lampp stop

To Restart Server :- sudo /opt/lampp/lampp restart

That’s all, I hope this article helps you to solve your problem.

Keep Exploring.

Thanks for reading.

Step 1 :- First locate httpd-xampp.conf file, for Ubuntu it’s located at /opt/lampp/etc/extra/

Step 2 :- open httpd-xampp.conf file for editing. you’ll find something live below code

# New XAMPP security concept
#
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
    Require local
    ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>

Step 3 :- add Require ip your_ip_address below Require local .

# New XAMPP security concept
#
<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
    Require local
    Require ip 10.0.0.1  // provide your static ip here.
    ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>

Step 4 :- Add your static IP address after Require ip your_static_ip.

It’s Done.

Now Check to access your_ip_address/phpmyadmin

To find, first fill root on username and leave blank password and click on Go, it will show which user you are trying to login.

In my case i’m logging in root@localhost so i’ll change that password after logging in phpmyadmin. So, login in your phpmyadmin.

After login you’ll see User Accounts Section on the top. click on it.

After that click on edit privileges for your

user type, in my case it’s root@localhost so i’ll click on edit privileges for that user.

Now, Go to change password tab from top.

Now Fill the password and click on Go.

It’s Done.

Your Password is Changed.

"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"

Minimum eight characters, at least one letter, one number and one special character:

"^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$"

Minimum eight characters, at least one uppercase letter, one lowercase letter and one number:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$"

Minimum eight characters, at least one uppercase letter, one lowercase letter, one number and one special character:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$"

Minimum eight and maximum 10 characters, at least one uppercase letter, one lowercase letter, one number and one special character:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,10}$"