Ruby on Rails MYSQL: Error: Query: not connected

 

Error

MySQL: Error: Query: not connected: Create Table 'schema _ migrations '('version' varchar (255) not null) engine = InnoDB

 

 

Solution;

Ruby is 1.8.6, rails is 2.2.3, MySQL is 5.1.51

This problem occurs because the libmysql. dll file in MySQL 5.1.3 and later cannot be properly connected to rails. Therefore, you only need to replace an old version of libmysql. dll file.

Http://instantrails.rubyforge.org/svn/trunk/InstantRails-win/InstantRails/mysql/bin/libmySQL.dll

Download the old version libmysql. dll file and save it to the ruby/bin/directory.