Category: Ubuntu

Error while install mysql2 ruby gem

How to fix “An error occurred while installing mysql2 (*)” when install mysql2 ruby gem ? The solution is just run this command on your terminal : On Ubuntu : $ sudo apt-get install libmysqlclient-dev On Redhat / Centos / Fedora : $ sudo yum install mysql-devel On Mac OSX with Homebrew : $ brew […]

Nginx error : [emerg] mkdir() “/var/cache/nginx/client_temp” failed (13: Permission denied)

The Nginx error “[emerg] mkdir() “/var/cache/nginx/client_temp” failed (13: Permission denied)” is caused by nginx process doesn’t have permission to access this file /var/cache/nginx/client_temp, the solution is change the file ownership and group belongs to the nginx process. If you run the nginx process as nginx and group is nginx then run this : $ sudo […]

How To Fix Error “checking for libpq-fe.h… no” While Installing PG Gem on Ubuntu & Mac

To resolve this error on Ubuntu just run : $ sudo apt-get install libpq-dev And on Mac : gem install pg -v ‘0.20.0’ — –with-pg-config=/Applications/Postgres.app/Contents/Versions/11/bin/pg_config Just change the pg gem version and PostgreSQL version depending on your need.

How To Fix can’t find gem bundler (>= 0.a) with executable bundle (Gem::GemNotFoundException)

If you got this error : $ bundle Traceback (most recent call last): 2: from /home/ubuntu-user/.rbenv/versions/2.5.1/bin/bundle:23:in `<main>’ 1: from /home/ubuntu-user/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems.rb:308:in `activate_bin_path’ /home/ubuntu-user/.rbenv/versions/2.5.1/lib/ruby/2.5.0/rubygems.rb:289:in `find_spec_for_exe’: can’t find gem bundler (>= 0.a) with executable bundle (Gem::GemNotFoundException) when bundling your gem on your rails app, the solution to fix is easy. Just updating your gem system using this command […]

How to Install PostgreSQL For Local Rails Development On Ubuntu 19.04

Before install PostgreSQL we need to update apt package list to do so : sudo apt update After that we can install PostgreSQL and dependencies : sudo apt install postgresql postgresql-contrib To switch into Postgres account : sudo -i -u postgres Now you can access PostgreSQL prompt by running command : psql Exit out of […]

How To Install FFMPEG on Ubuntu 19.04

This tutorial guide you to install ffmpeg on your Ubuntu 19.04 : Update your Ubuntu apt package list first : sudo apt update Next install ffmpeg : sudo apt install ffmpeg -y Verify ffmpeg version : ffmpeg -version The output should similar like this : ffmpeg version 3.4.6-0ubuntu0.19.04.1 Copyright (c) 2000-2019 the FFmpeg developers built […]

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