**Original problem:**

I'm (a newbie to ruby) using RVM to manage my ruby on Mac OSX 10.6

Here's my mac OX info:

```
$ rvm info

ruby-1.9.2-head@1.9.2-head-gemset:

  system:
    uname:       "Darwin fillibuster-2.local 10.6.0 Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386 i386"
    bash:        "/bin/bash => GNU bash, version 3.2.48(1)-release (i386-apple-darwin10.0)"
    zsh:         "/bin/zsh => zsh 4.3.9 (i386-apple-darwin10.0)"

  rvm:
    version:      "rvm 1.5.2 by Wayne E. Seguin (wayneeseguin@gmail.com) [http://rvm.beginrescueend.com/]"

  ruby:
    interpreter:  "ruby"
    version:      "1.9.2p188"
    date:         "2011-03-28"
    platform:     "i386-darwin10.6.0"
    patchlevel:   "2011-03-28 revision 31204"
    full_version: "ruby 1.9.2p188 (2011-03-28 revision 31204) [i386-darwin10.6.0]"

  homes:
    gem:          "/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@1.9.2-head-gemset"
    ruby:         "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head"

  binaries:
    ruby:         "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/bin/ruby"
    irb:          "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/bin/irb"
    gem:          "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/bin/gem"
    rake:         "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/bin/rake"

  environment:
    PATH:         "/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@1.9.2-head-gemset/bin:/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@global/bin:/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/bin:/Users/dawnbuie/.rvm/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/opt/local/bin:/usr/local/git/bin"
    GEM_HOME:     "/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@1.9.2-head-gemset"
    GEM_PATH:     "/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@1.9.2-head-gemset:/Users/dawnbuie/.rvm/gems/ruby-1.9.2-head@global"
    MY_RUBY_HOME: "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head"
    IRBRC:        "/Users/dawnbuie/.rvm/rubies/ruby-1.9.2-head/.irbrc"
    RUBYOPT:      ""
    gemset:       "1.9.2-head-gemset"

```

Here are my installed gem versions

```
$ gem list

*** LOCAL GEMS ***

abstract (1.0.0)
actionmailer (3.0.6)
actionpack (3.0.6)
activemodel (3.0.6)
activerecord (3.0.6)
activeresource (3.0.6)
activesupport (3.0.6)
arel (2.0.9)
builder (2.1.2)
bundler (1.0.11)
erubis (2.6.6)
i18n (0.5.0)
mail (2.2.15)
mime-types (1.16)
polyglot (0.3.1)
rack (1.2.2)
rack-mount (0.6.14)
rack-test (0.5.7)
rails (3.0.6)
railties (3.0.6)
rake (0.8.7)
sqlite3-ruby (1.3.2)
thor (0.14.6)
treetop (1.4.9)
tzinfo (0.3.26)

```

I'm following a tutorial trying to get to the actual rails building part, and I'm fine up to here:

```
$ rails generate scaffold User name:string email:string

```

but am constantly getting the following error when I type this:

```
$ rake db:migrate

```

I don't know if the problem is the version of sqlite3, or ruby 1.9.2p180 - I've tried looking for this error using google and this is all I come up with <https://redmine.ruby-lang.org/attachments/1505/ruby-1.9.2-bug.txt>

I don't know how to interpret the errors below as I'm just figuring out how all the pieces fit together.

thank you for any pointers or help identifying the source of the error

The error message:

```
$ rake db:migrate --trace
(in /Users/bobstuff/Documents/Projects/rubyonrails/rails_projects/first_app)
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3/sqlite3_native.bundle: [BUG] Bus Error
ruby 1.9.2p180 (2011-02-18 revision 30909) [i386-darwin10.6.0]

-- control frame ----------
c:0029 p:-7277696 s:0087 b:0087 l:000086 d:000086 TOP   
c:0028 p:---- s:0085 b:0085 l:000084 d:000084 CFUNC  :require
c:0027 p:0029 s:0081 b:0081 l:000077 d:000080 BLOCK  /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3.rb:6
c:0026 p:0035 s:0078 b:0078 l:000077 d:000077 TOP    /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3.rb:2
c:0025 p:---- s:0076 b:0076 l:000075 d:000075 FINISH
c:0024 p:---- s:0074 b:0074 l:000073 d:000073 CFUNC  :require
c:0023 p:0026 s:0070 b:0070 l:000051 d:000069 BLOCK  /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:68
c:0022 p:---- s:0067 b:0067 l:000066 d:000066 FINISH
c:0021 p:---- s:0065 b:0065 l:000064 d:000064 CFUNC  :each
c:0020 p:0091 s:0062 b:0062 l:000051 d:000061 BLOCK  /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:66
c:0019 p:---- s:0057 b:0057 l:000056 d:000056 FINISH
c:0018 p:---- s:0055 b:0055 l:000054 d:000054 CFUNC  :each
c:0017 p:0046 s:0052 b:0052 l:000051 d:000051 METHOD /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:55
c:0016 p:0021 s:0048 b:0048 l:000047 d:000047 METHOD /Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler.rb:120
c:0015 p:0079 s:0044 b:0044 l:000043 d:000043 TOP    /Users/bobstuff/Documents/Projects/rubyonrails/rails_projects/first_app/config/application.rb:7
c:0014 p:---- s:0042 b:0042 l:000041 d:000041 FINISH
c:0013 p:---- s:0040 b:0040 l:000039 d:000039 CFUNC  :require
c:0012 p:0013 s:0036 b:0036 l:000035 d:000035 METHOD <internal:lib/rubygems/custom_require>:29
c:0011 p:0026 s:0031 b:0031 l:000030 d:000030 TOP    /Users/bobstuff/Documents/Projects/rubyonrails/rails_projects/first_app/Rakefile:4
c:0010 p:---- s:0029 b:0029 l:000028 d:000028 FINISH
c:0009 p:---- s:0027 b:0027 l:000026 d:000026 CFUNC  :load
c:0008 p:0334 s:0023 b:0023 l:000022 d:000022 METHOD /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2373
c:0007 p:0009 s:0018 b:0018 l:000011 d:000017 BLOCK  /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2007
c:0006 p:0009 s:0016 b:0016 l:000015 d:000015 METHOD /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2058
c:0005 p:0011 s:0012 b:0012 l:000011 d:000011 METHOD /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2006
c:0004 p:0021 s:0009 b:0009 l:000008 d:000008 METHOD /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:1991
c:0003 p:0139 s:0006 b:0006 l:000b74 d:000ed4 EVAL   /Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/bin/rake:35
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:000b74 d:000b74 TOP   
---------------------------
-- Ruby level backtrace information ----------------------------------------
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/bin/rake:35:in `<main>'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:1991:in `run'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
/Users/bobstuff/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/rake.rb:2373:in `load'
/Users/bobstuff/Documents/Projects/rubyonrails/rails_projects/first_app/Rakefile:4:in `<top (required)>'
<internal:lib/rubygems/custom_require>:29:in `require'
<internal:lib/rubygems/custom_require>:29:in `require'
/Users/bobstuff/Documents/Projects/rubyonrails/rails_projects/first_app/config/application.rb:7:in `<top (required)>'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler.rb:120:in `require'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:55:in `require'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:55:in `each'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:66:in `block in require'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:66:in `each'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.11/lib/bundler/runtime.rb:68:in `require'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3.rb:2:in `<top (required)>'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3.rb:6:in `rescue in <top (required)>'
/Users/bobstuff/.rvm/gems/ruby-1.9.2-p180/gems/sqlite3-1.3.3/lib/sqlite3.rb:6:in `require'

-- C level backtrace information -------------------------------------------
0   libruby.1.9.1.dylib                 0x00195ca6 rb_vm_bugreport + 230
1   libruby.1.9.1.dylib                 0x0003f03f report_bug + 415
2   libruby.1.9.1.dylib                 0x0003f0eb rb_bug + 43
3   libruby.1.9.1.dylib                 0x0010df4b sigbus + 27
4   libSystem.B.dylib                   0x97b8246b _sigtramp + 43
5   ???                                 0xffffffff 0x0 + 4294967295
6   libruby.1.dylib                     0x00754f27 rb_intern + 62
7   libruby.1.dylib                     0x0070b7b2 rb_define_module + 32
8   sqlite3_native.bundle               0x004f160f Init_sqlite3_native + 27
9   libruby.1.9.1.dylib                 0x00004bd4 dln_load + 244
10  libruby.1.9.1.dylib                 0x001791cb rb_vm_call_cfunc + 187
11  libruby.1.9.1.dylib                 0x000462fe rb_require_safe + 1022
12  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
13  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
14  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
15  libruby.1.9.1.dylib                 0x00184fd6 rb_iseq_eval + 358
16  libruby.1.9.1.dylib                 0x00044f35 rb_load_internal + 293
17  libruby.1.9.1.dylib                 0x00046332 rb_require_safe + 1074
18  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
19  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
20  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
21  libruby.1.9.1.dylib                 0x0019231c rb_yield + 604
22  libruby.1.9.1.dylib                 0x0000ac6e rb_ary_each + 62
23  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
24  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
25  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
26  libruby.1.9.1.dylib                 0x0019231c rb_yield + 604
27  libruby.1.9.1.dylib                 0x0000ac6e rb_ary_each + 62
28  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
29  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
30  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
31  libruby.1.9.1.dylib                 0x00184fd6 rb_iseq_eval + 358
32  libruby.1.9.1.dylib                 0x00044f35 rb_load_internal + 293
33  libruby.1.9.1.dylib                 0x00046332 rb_require_safe + 1074
34  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
35  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
36  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
37  libruby.1.9.1.dylib                 0x00184fd6 rb_iseq_eval + 358
38  libruby.1.9.1.dylib                 0x00044f35 rb_load_internal + 293
39  libruby.1.9.1.dylib                 0x00046918 rb_f_load + 136
40  libruby.1.9.1.dylib                 0x00175835 call_cfunc + 581
41  libruby.1.9.1.dylib                 0x00191010 vm_call_method + 944
42  libruby.1.9.1.dylib                 0x0017a845 vm_exec_core + 5397
43  libruby.1.9.1.dylib                 0x00184aed vm_exec + 1821
44  libruby.1.9.1.dylib                 0x00184e47 rb_iseq_eval_main + 535
45  libruby.1.9.1.dylib                 0x00042569 ruby_exec_internal + 153
46  libruby.1.9.1.dylib                 0x00044aca ruby_run_node + 90
47  ruby                                0x00001f1f main + 95
48  ruby                                0x00001eb5 start + 53

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Abort trap

```

---

EDIT: **Answer found:**

The problem was I was using an old (2007!) mac architecture - MacBook Core Duo (not to be confused with Core 2 Duo) which is 32 bit, NOT current 64 bit, and the current version of sqlite3 [recommended in this tutorial](http://ruby.railstutorial.org/ruby-on-rails-tutorial-book#sec:the_first_application) (gem 'sqlite3-ruby', :require => 'sqlite3') did not work with the rest of my Gems. I uninstalled sqlite,

```
gem uninstall sqlite3 sqlite3-ruby
gem pristine --all  // not sure if necessary, suggested in comments

```

edited my Gemfile to:

```
gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'

```

then

```
Bundle install
rake db:migrate

```

and it works! So far.

I found the [suggestion by Josh Crews](https://stackoverflow.com/questions/3000819/sqlite3-ruby-cant-make-on-rvm-1-8-7/3009142#3009142) to use an earlier version of sqlite3 - even though he was using it on Leopard, with ruby 1.8.7.