rake db: migrate produce "rastrillo abortado! no se pudo encontrar la tabla "error

Soy nuevo en Rails y estoy creando una aplicación simple de seguimiento de proyectos para mi empleador. He estado desarrollando la aplicación en mi Mac y empujándola a github. Me las arreglé para clonar mi repositorio de github en una ventana de Windows detrás del firewall de mi empresa con la esperanza de permitir que los colegas prueben la aplicación.

Pero cuando voy a rake db: migrate para inicializar la base de datos en el cuadro de Windows, recibo los siguientes mensajes de error:

$ rake db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
rake aborted!
Could not find table 'projects'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/connection_adapters/sqlite3_adapter.rb:29:in `table_structure'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/faker-0.3.1/lib/extensions/object.
rb:3:in `returning'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/connection_adapters/sqlite3_adapter.rb:28:in `table_structure'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/connection_adapters/sqlite_adapter.rb:228:in `columns'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/base.rb:1271:in `columns'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/base.rb:1279:in `columns_hash'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/base.rb:1578:in `find_one'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/base.rb:1569:in `find_from_ids'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_reco
rd/base.rb:616:in `find'
c:/Rails_Projects/molex_app/config/routes.rb:15
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_contro
ller/routing/route_set.rb:226:in `draw'
c:/Rails_Projects/molex_app/config/routes.rb:1
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:145:in `load_without_new_constant_marking'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:145:in `load'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:521:in `new_constants_in'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:145:in `load'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_contro
ller/routing/route_set.rb:286:in `load_routes!'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_contro
ller/routing/route_set.rb:286:in `each'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_contro
ller/routing/route_set.rb:286:in `load_routes!'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_contro
ller/routing/route_set.rb:266:in `reload!'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:537
:in `initialize_routing'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:188
:in `process'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113
:in `send'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113
:in `run'
c:/Rails_Projects/molex_app/config/environment.rb:9
c:/RubyonRails/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `
gem_original_require'
c:/RubyonRails/Ruby187/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `
require'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:156:in `require'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:521:in `new_constants_in'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_sup
port/dependencies.rb:156:in `require'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/tasks/misc.rake:4
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `cal
l'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:617:in `exe
cute'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `eac
h'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:612:in `exe
cute'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:578:in `inv
oke_with_call_chain'
c:/RubyonRails/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `inv
oke_with_call_chain'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:588:in `inv
oke_prerequisites'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `eac
h'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:585:in `inv
oke_prerequisites'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:577:in `inv
oke_with_call_chain'
c:/RubyonRails/Ruby187/lib/ruby/1.8/monitor.rb:242:in `synchronize'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:571:in `inv
oke_with_call_chain'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:564:in `inv
oke'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2019:in `in
voke_task'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `to
p_level'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `ea
ch'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1997:in `to
p_level'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `st
andard_exception_handling'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1991:in `to
p_level'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1970:in `ru
n'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:2036:in `st
andard_exception_handling'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/lib/rake.rb:1967:in `ru
n'
c:/RubyonRails/Ruby187/lib/ruby/gems/1.8/gems/rake-0.8.3/bin/rake:31
c:/RubyonRails/Ruby187/bin/rake:19:in `load'
c:/RubyonRails/Ruby187/bin/rake:19

Mi lista de gemas se ve así:

$ gem list

*** LOCAL GEMS ***

actionmailer (2.3.5)
actionpack (2.3.5)
activerecord (2.3.5)
activeresource (2.3.5)
activesupport (2.3.5)
faker (0.3.1)
rack (1.0.1, 1.0.0)
rails (2.3.5)
rake (0.8.3)
sqlite3-ruby (1.3.0 x86-mingw32)
will_paginate (2.3.12)

Mi archivo schema.rb en el cuadro de Windows se ve así:

# This file is auto-generated from the current state of the database. Instead of editing this file, 
# please use the migrations feature of Active Record to incrementally modify your database, and
# then regenerate this schema definition.
#
# Note that this schema.rb definition is the authoritative source for your database schema. If you need
# to create the application database on another system, you should be using db:schema:load, not running
# all the migrations from scratch. The latter is a flawed and unsustainable approach (the more migrations
# you'll amass, the slower it'll run and the greater likelihood for issues).
#
# It's strongly recommended to check this file into your version control system.

ActiveRecord::Schema.define(:version => 20100915193510) do

  create_table "assets", :force => true do |t|
    t.integer  "project_id"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "image_file_name"
    t.string   "image_content_type"
    t.integer  "image_file_size"
    t.datetime "image_updated_at"
  end

  create_table "macroposts", :force => true do |t|
    t.text     "content"
    t.integer  "user_id"
    t.integer  "project_id"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "projects", :force => true do |t|
    t.string   "title"
    t.integer  "status",             :limit => 255
    t.integer  "program_manager_id"
    t.integer  "design_engineer_id"
    t.string   "sales_engineer"
    t.string   "customer"
    t.string   "market_size"
    t.string   "project_code"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  add_index "projects", ["design_engineer_id"], :name => "index_projects_on_design_engineer_id"
  add_index "projects", ["program_manager_id"], :name => "index_projects_on_program_manager_id"

  create_table "statuses", :force => true do |t|
    t.string   "status_name"
    t.integer  "status_code"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

  create_table "users", :force => true do |t|
    t.string   "name"
    t.string   "email"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "encrypted_password"
    t.string   "salt"
    t.string   "remember_token"
    t.boolean  "admin",               :default => false
    t.string   "avatar_file_name"
    t.string   "avatar_content_type"
    t.integer  "avatar_file_size"
    t.datetime "avatar_updated_at"
  end

  add_index "users", ["email"], :name => "index_users_on_email", :unique => true
  add_index "users", ["remember_token"], :name => "index_users_on_remember_token"

end

Como esta es la primera vez que realizo migraciones en esta máquina, esperaría que nada sobre el proceso de migración intente acceder a la tabla de 'proyectos' antes de que se cree. Pero me doy cuenta de que la tabla de "proyectos" no aparece en schema.rb hasta después de varias tablas asociadas (activos, macroposts). ¿Esa es la fuente del problema?

¿O hay algún tipo de problema de dependencia de gemas en el trabajo aquí? Me di cuenta de que la gema 'falsa' aparece en la parte superior de la lista de errores, a pesar de que ni siquiera la uso, excepto en mis pruebas (copiada de RailsTutorial.org de Michael Hartl).

¡Gracias por cualquier ayuda o sugerencia que pueda ofrecer!

Dean Richardson Genlighten.com

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