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MySQL Error 121 Duplicate key on write - Practical Repair Strategy
MySQL Error 121 Duplicate key on write – Practical Repair Strategy
February 13, 2026
PHP cURL error 60: SSL certificate problem - Windows & Linux Fix
PHP cURL error 60: SSL certificate problem – Windows & Linux Fix
February 11, 2026
Fix localhost refused to connect After Installing XAMPP / WAMP
Fix “localhost refused to connect” After Installing XAMPP / WAMP
February 9, 2026
Composer Error Memory exhausted When Installing Packages - Real Fix
Composer Error: Memory exhausted When Installing Packages – Real Fix
February 6, 2026
MySQL 8 Error Unknown collation: utf8mb4_0900_ai_ci - Safe Migration Guide
MySQL 8 Error Unknown collation: utf8mb4_0900_ai_ci – Safe Migration Guide
February 4, 2026
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Fix iOS Safari input type="file" Not Opening Camera - Real Solution
HTML

Fix iOS Safari input type=”file” Not Opening Camera – Real Solution

Image by Devnote team
February 16, 2026

You add an <input type="file">, test on desktop, everything works.Then you open the page on an iPhone, tap the field in Safari, and...

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MySQL Error 121 Duplicate key on write - Practical Repair Strategy
MYSQL

MySQL Error 121 Duplicate key on write – Practical Repair Strategy

Image by Devnote team
February 13, 2026

ERROR 121: Duplicate key on write or update usually appears when you run an INSERT, UPDATE, or when MySQL is applying a foreign key or...

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PHP cURL error 60: SSL certificate problem - Windows & Linux Fix
PHP

PHP cURL error 60: SSL certificate problem – Windows & Linux Fix

Image by Devnote team
February 11, 2026

If you are working with APIs in PHP and suddenly see: cURL error 60: SSL certificate problem: unable to get local issuer certificate it...

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Fix localhost refused to connect After Installing XAMPP / WAMP
xampp

Fix “localhost refused to connect” After Installing XAMPP / WAMP

Image by Devnote team
February 9, 2026

You install XAMPP or WAMP, open your browser, type http://localhost and instead of the dashboard you see: localhost refused to connect ,...

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Composer Error Memory exhausted When Installing Packages - Real Fix
Composer

Composer Error: Memory exhausted When Installing Packages – Real Fix

Image by Devnote team
February 6, 2026

If you work with PHP projects long enough, you will eventually hit the dreaded Composer error: PHP Fatal error: Allowed memory size...

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MySQL 8 Error Unknown collation: utf8mb4_0900_ai_ci - Safe Migration Guide
MYSQL

MySQL 8 Error Unknown collation: utf8mb4_0900_ai_ci – Safe Migration Guide

Image by Devnote team
February 4, 2026

This error usually appears when you export a database from MySQL 8 and try to import it into: You’ll see something like: ERROR 1273...

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WordPress Critical Error When Editing with Gutenberg - Root Cause + Fix
wordpress

WordPress Critical Error When Editing with Gutenberg – Root Cause + Fix

Image by Devnote team
February 2, 2026

You click Edit in Gutenberg and the page instantly crashes with: There has been a critical error on this website. This usually means a...

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PHP 8.3 Fatal Error: Cannot use string offset as an array - Real World Case
PHP

PHP 8.3 Fatal Error: Cannot use string offset as an array – Real World Case

Image by Devnote team
January 30, 2026

After upgrading to PHP 8.3 you might suddenly see this: Fatal error: Uncaught Error: Cannot use string offset as an array In older PHP...

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Image
NginxPHP

How to Fix Nginx 413 Request Entity Too Large for Image & Video Uploads

Image by Devnote team
January 28, 2026

You try to upload a big image or video and Nginx responds with: 413 Request Entity Too Largenginx This means Nginx rejected the request...

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How to Fix MySQL ERROR 1698 (28000): Access denied for user 'root'@'localhost'
MYSQL

How to Fix MySQL ERROR 1698 (28000): Access denied for user ‘root’@’localhost’

Image by Devnote team
January 26, 2026

On many modern Linux systems (especially Ubuntu/Debian with MySQL or MariaDB), you may see this when trying to log in: mysql -u root -p...

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Featured Posts

Fix iOS Safari input type="file" Not Opening Camera - Real Solution
Fix iOS Safari input type=”file” Not Opening Camera – Real Solution
February 16, 2026
MySQL Error 121 Duplicate key on write - Practical Repair Strategy
MySQL Error 121 Duplicate key on write – Practical Repair Strategy
February 13, 2026
PHP cURL error 60: SSL certificate problem - Windows & Linux Fix
PHP cURL error 60: SSL certificate problem – Windows & Linux Fix
February 11, 2026

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