Error solution during MySQL connection in UbuntuRubyonRails

In Ubuntu, when MySQL is installed in the RubyonRails environment, an error occurs when connecting to the database. The following message is often displayed: UninitializedConstantMysqlCompat: MysqlRes. The specific processing method is to delete the installed MYSQL first: sudogemuninstallmysql then execute the following code: exportARCHFLAGS = "-archi386-archx

In Ubuntu, after MySQL is installed in the Ruby on Rails environment, an error occurs when connecting to the database. The following information is often displayed:

Uninitialized Constant MysqlCompat: MysqlRes

The specific solution is to first Delete the installed MYSQL:

Sudo gem uninstall mysql

Then run the following code:

Export ARCHFLAGS = "-arch i386-arch x86_64"

Sudo gem install -- no-rdoc -- no-ri mysql -- with-mysql-dir =/usr/local/mysql -- with-mysql-config =/usr/local/mysql/ bin/mysql_config

Then the problem is solved!