"rails server"コマンドを試してみると、このエラーメッセージが表示されます。"rails server"が動作しない、sqlite3_nativeシンボルが見つかりません
/Library/Ruby/Gems/1.8/gems/sqlite3-1.3.5/lib/sqlite3/sqlite3_native.bundle: dlsym(0x1010621e0, Init_sqlite3_native): symbol not found - /Library/Ruby/Gems/1.8/gems/sqlite3-1.3.5/lib/sqlite3/sqlite3_native.bundle (LoadError)
from /Library/Ruby/Gems/1.8/gems/sqlite3-1.3.5/lib/sqlite3.rb:6
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require'
from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler.rb:122:in `require'
from /Users/grace/Documents/web_stuff/tutorbookrails/config/application.rb:7
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/commands.rb:52:in `require'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/commands.rb:52
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/commands.rb:49:in `tap'
from /Library/Ruby/Gems/1.8/gems/railties-3.1.3/lib/rails/commands.rb:49
from script/rails:6:in `require'
from script/rails:6
バンドルインストールを実行しましたか? sqlite db serverをインストールしましたか? ここにあなたのgemfileを貼り付けてください –