bad interpreter: No such file or directory when running rake

rubyonrails-talk
1

After upgrading to Snow Leopard, I found my rails and mysql installs to be completely hosed, so I uninstalled ruby, mysql, and rubygems and reinstalled them from these instructions:

Here's where things are installed now:

$ which ruby /usr/local/bin/ruby $ which rails /usr/local/bin/rails $ which gem /usr/local/bin/gem $ which rake /usr/bin/rake $ which mysql /usr/local/mysql/bin/mysql

My problem is that if I try to run rake db:migrate (or anything with rake), I get this error:

$ rake db:migrate -bash: /usr/bin/rake: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory

My .bash_profile is a mess due to many hours of unsuccessful troubleshooting:

$ echo $PATH /~/.gem:/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/lib/ruby/gems/1.8/bin/:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:/usr/local/bin:/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/opt/local/bin:/opt/local/sbin:/Users/devin/.gem/ruby/1.8/bin

How do I reset my profile to get rake (and everything else) working properly.

2

OK, I was somehow able to resolve this error by reinstalling both rake and rails. Now I get a different error:

$ rake db:migrate (in /Users/devin/Sites/test) dyld: lazy symbol binding failed: Symbol not found: _mysql_init   Referenced from: /usr/local/lib/ruby/gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle   Expected in: flat namespace

dyld: Symbol not found: _mysql_init   Referenced from: /usr/local/lib/ruby/gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle   Expected in: flat namespace

Trace/BPT trap

3

OK, I was somehow able to resolve this error by reinstalling both rake

and rails. Now I get a different error:

$ rake db:migrate

(in /Users/devin/Sites/test)

dyld: lazy symbol binding failed: Symbol not found: _mysql_init

Referenced from:

/usr/local/lib/ruby/gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle

Expected in: flat namespace

dyld: Symbol not found: _mysql_init

Referenced from:

/usr/local/lib/ruby/gems/1.8/gems/mysql-2.8.1/lib/mysql_api.bundle

Expected in: flat namespace

Trace/BPT trap

MySQL does work fine, but rails isn’t seeing it:

irb(main):001:0> require ‘mysql’

LoadError: no such file to load – mysql

from (irb):1:in `require’

from (irb):1

In the above, you haven’t loaded the Rails environment. You’ll have to

navigate to the root of a Rails application and perform the following

action:

script/console

Next, if you’re upgrading to Snow Leopard, then I would recommending

reading the following:

http://weblog.rubyonrails.org/2009/8/30/upgrading-to-snow-leopard

However, I would recommend installing MySQL database server via MacPorts

because the maintainer keeps this port relatively current:

a) install the latest version of MacPorts

Snow Leopard

b) update your PATH environment variable in .profile to look like the following:

export PATH=/opt/local/bin:/opt/local/sbin:${PATH}

c) open up a new terminal window

d) install the MySQL5 database server

sudo port install mysql5-server

Note: Please following the instructions that appear on the screen for post installation.

e) configure RubyGems

sudo gem update --system

f) install some basic gems

sudo gem install rails mysql sqlite3-ruby rack

Good luck,

-Conrad