<div>
Are you on a mac? &nbsp;I presume so since you're talking about MAMP.<br />
<br />
Did you happen to restart your application after you recompiled the gem?<br />
<br />
Try:<br />
sudo gem update mysql<br />
<br />
Maybe that'll reinstall what you need?
</div>


Are you on a mac?  I presume so since you're talking about MAMP.

Did you happen to restart your application after you recompiled the gem?

Try:
sudo gem update mysql

Maybe that'll reinstall what you need?

<div>
yes, i'm on mac.<br />
I've restarted the compiled gem.<br />
<br />
With &quot;sudo gem update mysql&quot; i get:<br />
&quot;Updating installed gems<br />
Nothing to update&quot;<br />

</div>


yes, i'm on mac.
I've restarted the compiled gem.

With "sudo gem update mysql" i get:
"Updating installed gems
Nothing to update"


<div>
What version of rails are you using?<br />
You should see it when you run &quot;ruby script/server&quot;.
</div>


What version of rails are you using?
You should see it when you run "ruby script/server".

<div>
One more link to someone explaining this issue:<br />
<br />
<a href="http://techliberty.blogspot.com/2009/12/dealing-with-rake-aborted-uninitialized.html" rel="ugc">http://techliberty.blogspot.com/2009/12/dealing-with-rake-aborted-uninitialized.html</a><br />
<br />
You'll probably need to specify the path to your MAMP's mysql installation, wherever you put it.
</div>


One more link to someone explaining this issue:

http://techliberty.blogspot.com/2009/12/dealing-with-rake-aborted-uninitialized.html [http://techliberty.blogspot.com/2009/12/dealing-with-rake-aborted-uninitialized.html]

You'll probably need to specify the path to your MAMP's mysql installation, wherever you put it.

<div>
<div class="content wysiwyg-content">
I have this error: <br />
Status: 500 Internal Server Error<br />
&nbsp; uninitialized constant MysqlCompat::MysqlRes<br />
<br />
Already followed this tutorial: <a href="http://boonedocks.net/mike/archives/175-MAMP-and-the-Ruby-MySQL-Gem.html" rel="ugc">http://boonedocks.net/mike/archives/175-MAMP-and-the-Ruby-MySQL-Gem.html</a><br />
<br />
But still the same problem.<br />
At the RoR server localhost:3000 page i get the RoR-message &quot;we're sorry...&quot;
</div>
</div>


I have this error: 
Status: 500 Internal Server Error
  uninitialized constant MysqlCompat::MysqlRes

Already followed this tutorial: http://boonedocks.net/mike/archives/175-MAMP-and-the-Ruby-MySQL-Gem.html

But still the same problem.
At the RoR server localhost:3000 page i get the RoR-message "we're sorry..."

Status: 500 Internal Server Error   uninitialized constant MysqlCompat::MysqlRes

Ruby is an open-source dynamic object-oriented interpreted language that supports multiple programming frameworks including functional, object oriented and imperative. It also has a dynamic type system and automatic memory management. Ruby focuses on simplicity and productivity. Ruby's market share spiked due to Ruby on Rails, a model-view-controller (MVC) framework for building web applications.

Ruby

MySQL is an open source, relational database management system that runs as a server providing multi-user access to a number of databases. Acquired by Oracle in 2009, it is frequently used in combination with PHP installations, powering most of the WordPress installations.