"193: %1 is not a valid Win32 application" bug with a new Rails Application

Question

I have a new rails application which I have created under Windows 7 by going into a directory and typing "rails newapp". The creation went fine, and when I access the root page, all is well. However, when I try to access a page that would access the database, I get this:

193: %1 is not a valid Win32 application.

In the developer.log. Mysql is running fine on my machine, and I have other applications which I have running in here in other directories, it's just this one that doesn't work. Any thoughts?

Answer 1

Here's the answer that worked for me. Turns out it was an issue of x64 vs. x32 issue and Rails 2.3.2.

The answer I got from here (http://osdir.com/ml/RubyonRailsTalk/2009-06/msg01775.html):

In case anyone else has the same problem after a lot of struggling on my Windows XP x64 machine, with MySQL 5.1.30 (x64) and Rails 2.3.2 installed, this above suggestiong helped me. Download libMySql.dll from here (http://instantrails.rubyforge.org/svn/trunk/InstantRails-win/InstantRails/mysql/bin/) and putting it in ruby\bin solved the problem.

Answer 2

This error occurs if you have a file with name "Program" in the root of your drive. Say for example you are trying to execute "C:\Program Files\SomeApp\Bin\SomeExe.Exe" it tries to execute "C:\Program" if it exists. In some situations a file with this name get created if you forget to quote "C:\Program Files..." with some commandline commands. This of course also applies for you D: drive, etc.

This error often occurs if you try to start services, but may occur in other situations.

Simply deleting the file C:\Program or D:\Program etc. solves the problem.