我正在将rails项目从rails 3.0升级到4.1.8。我刚刚完成了自升级以来的第一次迁移，在运行它之后，schema.rb中缺少一些表，并显示以下消息。
由于跟随NoMethodError
，无法转储表“帐户”#ActiveRecord :: SchemaDumper的未定义方法`default_string'：0x007fcf024c7b00＆gt;
缺少的表都有默认值的列。
我在这里报告了类似的问题
https://github.com/rails/rails/issues/11995
在这里
https://github.com/rsim/oracle-enhanced/issues/221
但我的项目在gem或数据库方面与这些不匹配。
我在rails 4.1.8下创建了一个新项目，创建了一个迁移来创建一个无法转储的表，在MySQL数据库中运行成功并生成带有默认值的模式文件。
有没有人遇到过类似的问题？有什么建议吗？
Gemfile.lock工作时：
specs:
actionmailer (4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
mail (~> 2.5, >= 2.5.4)
actionpack (4.1.8)
actionview (= 4.1.8)
activesupport (= 4.1.8)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
actionview (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
erubis (~> 2.7.0)
activemodel (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
activerecord (4.1.8)
activemodel (= 4.1.8)
activesupport (= 4.1.8)
arel (~> 5.0.0)
activesupport (4.1.8)
i18n (~> 0.6, >= 0.6.9)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.1)
tzinfo (~> 1.1)
arel (5.0.1.20140414130214)
builder (3.2.2)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.8.0)
erubis (2.7.0)
execjs (2.2.2)
formtastic (3.1.2)
actionpack (>= 3.2.13)
hike (1.2.3)
i18n (0.6.11)
jbuilder (2.2.5)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-rails (3.1.2)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mime-types (2.4.3)
minitest (5.4.3)
multi_json (1.10.1)
mysql2 (0.3.17)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.1.8)
actionmailer (= 4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
activemodel (= 4.1.8)
activerecord (= 4.1.8)
activesupport (= 4.1.8)
bundler (>= 1.3.0, < 2.0)
railties (= 4.1.8)
sprockets-rails (~> 2.0)
railties (4.1.8)
actionpack (= 4.1.8)
activesupport (= 4.1.8)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.1.2)
json (~> 1.4)
sass (3.2.19)
sass-rails (4.0.5)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.2)
sprockets (~> 2.8, < 3.0)
sprockets-rails (~> 2.0)
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
spring (1.2.0)
sprockets (2.12.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.2)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
sqlite3 (1.3.10)
thor (0.19.1)
thread_safe (0.3.4)
tilt (1.4.1)
turbolinks (2.5.2)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.5.3)
execjs (>= 0.3.0)
json (>= 1.8.0)
Gemfile.lock，当它没有：
specs:
actionmailer (4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
mail (~> 2.5, >= 2.5.4)
actionpack (4.1.8)
actionview (= 4.1.8)
activesupport (= 4.1.8)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
actionview (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
erubis (~> 2.7.0)
active_utils (2.2.3)
activesupport (>= 2.3.11)
i18n
activemerchant (1.45.0)
active_utils (~> 2.2.0)
activesupport (>= 3.2.14, < 5.0.0)
builder (>= 2.1.2, < 4.0.0)
i18n (>= 0.6.9)
json (~> 1.7)
nokogiri (~> 1.4)
offsite_payments (~> 2.0.0)
activemodel (4.1.8)
activesupport (= 4.1.8)
builder (~> 3.1)
activerecord (4.1.8)
activemodel (= 4.1.8)
activesupport (= 4.1.8)
arel (~> 5.0.0)
activeresource (4.0.0)
activemodel (~> 4.0)
activesupport (~> 4.0)
rails-observers (~> 0.1.1)
activesupport (4.1.8)
i18n (~> 0.6, >= 0.6.9)
json (~> 1.7, >= 1.7.7)
minitest (~> 5.1)
thread_safe (~> 0.1)
tzinfo (~> 1.1)
addressable (2.3.6)
airbrake (4.1.0)
builder
multi_json
arel (5.0.1.20140414130214)
authlogic (3.4.3)
activerecord (>= 3.2)
activesupport (>= 3.2)
request_store (~> 1.0)
scrypt (~> 1.2)
awesome_print (1.2.0)
aws-sdk (1.59.1)
aws-sdk-v1 (= 1.59.1)
aws-sdk-v1 (1.59.1)
json (~> 1.4)
nokogiri (>= 1.4.4)
axlsx (2.0.1)
htmlentities (~> 4.3.1)
nokogiri (>= 1.4.1)
rubyzip (~> 1.0.0)
braintree (2.37.0)
builder (>= 2.0.0)
builder (3.2.2)
cancan (1.6.10)
capybara (2.4.4)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
chargify_api_ares (1.3.0)
activeresource (>= 3.2.16)
childprocess (0.5.5)
ffi (~> 1.0, >= 1.0.11)
climate_control (0.0.3)
activesupport (>= 3.0)
cobravsmongoose (0.0.2)
cocaine (0.5.4)
climate_control (>= 0.0.3, < 1.0)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.3.0)
coffee-script-source
execjs
coffee-script-source (1.8.0)
crack (0.4.2)
safe_yaml (~> 1.0.0)
crass (0.2.1)
cucumber (1.3.17)
builder (>= 2.1.2)
diff-lcs (>= 1.1.3)
gherkin (~> 2.12)
multi_json (>= 1.7.5, < 2.0)
multi_test (>= 0.1.1)
cucumber-rails (1.4.2)
capybara (>= 1.1.2, < 3)
cucumber (>= 1.3.8, < 2)
mime-types (>= 1.16, < 3)
nokogiri (~> 1.5)
rails (>= 3, < 5)
daemons (1.1.9)
database_cleaner (1.3.0)
diff-lcs (1.2.5)
doc_raptor (0.3.2)
httparty (>= 0.7.0)
domain_name (0.5.22)
unf (>= 0.0.5, < 1.0.0)
engineyard (3.0.1)
engineyard-cloud-client (~> 2.1.1)
engineyard-serverside-adapter (= 2.2.0)
escape (~> 0.0.4)
highline (~> 1.6.1)
launchy (~> 2.1)
net-ssh (~> 2.7)
engineyard-cloud-client (2.1.1)
multi_json (~> 1.6)
rest-client (~> 1.7)
engineyard-serverside-adapter (2.2.0)
escape (~> 0.0.4)
multi_json (~> 1.6)
erector (0.10.0)
treetop (>= 1.2.3)
erubis (2.7.0)
escape (0.0.4)
eventmachine (1.0.3)
execjs (2.2.2)
factory_girl (4.5.0)
activesupport (>= 3.0.0)
factory_girl_rails (4.5.0)
factory_girl (~> 4.5.0)
railties (>= 3.0.0)
ffaker (1.25.0)
ffi (1.9.6)
ffi-compiler (0.1.3)
ffi (>= 1.0.0)
rake
formtastic (3.1.2)
actionpack (>= 3.2.13)
fuubar (2.0.0)
rspec (~> 3.0)
ruby-progressbar (~> 1.4)
fuubar-cucumber (0.0.22)
cucumber (~> 1.3.0)
ruby-progressbar (~> 1.2)
gherkin (2.12.2)
multi_json (~> 1.3)
gibbon (1.1.4)
httparty
multi_json (>= 1.3.4)
googlecharts (1.6.8)
haml (4.0.6)
tilt
hashie (3.3.1)
highline (1.6.21)
hike (1.2.3)
htmlentities (4.3.2)
http-cookie (1.0.2)
domain_name (~> 0.5)
http_logger (0.5.1)
httparty (0.13.3)
json (~> 1.8)
multi_xml (>= 0.5.2)
i18n (0.6.11)
jbuilder (2.2.5)
activesupport (>= 3.0.0, < 5)
multi_json (~> 1.2)
jquery-datatables-rails (3.1.1)
actionpack (>= 3.1)
jquery-rails
railties (>= 3.1)
sass-rails
jquery-minicolors-rails (2.1.4.0)
jquery-rails
rails (>= 3.2.8)
jquery-rails (3.1.2)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
jquery-ui-rails (5.0.3)
railties (>= 3.2.16)
json (1.8.1)
json_spec (1.1.4)
multi_json (~> 1.0)
rspec (>= 2.0, < 4.0)
launchy (2.4.3)
addressable (~> 2.3)
livequery-rails (0.0.1)
railties (>= 3.0)
mail (2.6.3)
mime-types (>= 1.16, < 3)
mechanize (2.7.3)
domain_name (~> 0.5, >= 0.5.1)
http-cookie (~> 1.0)
mime-types (~> 2.0)
net-http-digest_auth (~> 1.1, >= 1.1.1)
net-http-persistent (~> 2.5, >= 2.5.2)
nokogiri (~> 1.4)
ntlm-http (~> 0.1, >= 0.1.1)
webrobots (>= 0.0.9, < 0.2)
metaclass (0.0.4)
mime-types (2.4.3)
mini_portile (0.6.1)
minitest (5.4.3)
mocha (1.1.0)
metaclass (~> 0.0.1)
money (6.4.0)
i18n (>= 0.6.4, <= 0.7.0.beta1)
mono_logger (1.1.0)
multi_json (1.10.1)
multi_test (0.1.1)
multi_xml (0.5.5)
mysql2 (0.3.17)
net-http-digest_auth (1.4)
net-http-persistent (2.9.4)
net-ssh (2.9.1)
netrc (0.9.0)
nokogiri (1.6.5)
mini_portile (~> 0.6.0)
nokogumbo (1.1.12)
nokogiri
ntlm-http (0.1.1)
offsite_payments (2.0.1)
active_utils (~> 2.2.0)
activesupport (>= 3.2.14, < 5.0.0)
builder (>= 2.1.2, < 4.0.0)
i18n (~> 0.5)
json (~> 1.7)
money (< 7.0.0)
nokogiri (~> 1.4)
orderedhash (0.0.6)
paperclip (4.2.0)
activemodel (>= 3.0.0)
activesupport (>= 3.0.0)
cocaine (~> 0.5.3)
mime-types
paranoia (2.0.4)
activerecord (~> 4.0)
polyglot (0.3.5)
rack (1.5.2)
rack-protection (1.5.3)
rack
rack-test (0.6.2)
rack (>= 1.0)
rails (4.1.8)
actionmailer (= 4.1.8)
actionpack (= 4.1.8)
actionview (= 4.1.8)
activemodel (= 4.1.8)
activerecord (= 4.1.8)
activesupport (= 4.1.8)
bundler (>= 1.3.0, < 2.0)
railties (= 4.1.8)
sprockets-rails (~> 2.0)
rails-observers (0.1.2)
activemodel (~> 4.0)
railties (4.1.8)
actionpack (= 4.1.8)
activesupport (= 4.1.8)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.4.2)
rdoc (4.1.2)
json (~> 1.4)
redcarpet (3.2.1)
redis (3.1.0)
redis-namespace (1.5.1)
redis (~> 3.0, >= 3.0.4)
request_store (1.1.0)
resque (1.25.2)
mono_logger (~> 1.0)
multi_json (~> 1.0)
redis-namespace (~> 1.3)
sinatra (>= 0.9.2)
vegas (~> 0.1.2)
rest-client (1.7.2)
mime-types (>= 1.16, < 3.0)
netrc (~> 0.7)
right_aws (3.1.0)
right_http_connection (>= 1.2.5)
right_http_connection (1.5.0)
rspec (3.1.0)
rspec-core (~> 3.1.0)
rspec-expectations (~> 3.1.0)
rspec-mocks (~> 3.1.0)
rspec-activemodel-mocks (1.0.1)
activemodel (>= 3.0)
activesupport (>= 3.0)
rspec-mocks (>= 2.99, < 4.0)
rspec-core (3.1.7)
rspec-support (~> 3.1.0)
rspec-expectations (3.1.2)
diff-lcs (>= 1.2.0, < 2.0)
rspec-support (~> 3.1.0)
rspec-mocks (3.1.3)
rspec-support (~> 3.1.0)
rspec-rails (3.1.0)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 3.1.0)
rspec-expectations (~> 3.1.0)
rspec-mocks (~> 3.1.0)
rspec-support (~> 3.1.0)
rspec-support (3.1.2)
rturk (2.12.1)
erector
nokogiri
rest-client
ruby-ole (1.2.11.7)
ruby-progressbar (1.7.0)
rubyXL (3.0.0)
nokogiri (>= 1.4.4)
rubyzip (>= 1.0.0)
rubyzip (1.0.0)
safe_yaml (1.0.4)
sanitize (3.0.3)
crass (~> 0.2.0)
nokogiri (>= 1.4.4)
nokogumbo (= 1.1.12)
sass (3.2.19)
sass-rails (4.0.5)
railties (>= 4.0.0, < 5.0)
sass (~> 3.2.2)
sprockets (~> 2.8, < 3.0)
sprockets-rails (~> 2.0)
scrypt (1.2.1)
ffi-compiler (>= 0.0.2)
rake
sdoc (0.4.1)
json (~> 1.7, >= 1.7.7)
rdoc (~> 4.0)
selenium-webdriver (2.44.0)
childprocess (~> 0.5)
multi_json (~> 1.0)
rubyzip (~> 1.0)
websocket (~> 1.0)
shoulda-context (1.2.1)
simple-navigation (3.13.0)
activesupport (>= 2.3.2)
simple_xurrency (1.1.2)
crack (>= 0.1.8)
sinatra (1.4.5)
rack (~> 1.4)
rack-protection (~> 1.4)
tilt (~> 1.3, >= 1.3.4)
spreadsheet (1.0.0)
ruby-ole (>= 1.0)
sprockets (2.12.3)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.2.2)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (>= 2.8, < 4.0)
symbolize (4.5.1)
activemodel (>= 3.2, < 5)
activesupport (>= 3.2, < 5)
thin (1.6.3)
daemons (~> 1.0, >= 1.0.9)
eventmachine (~> 1.0)
rack (~> 1.0)
thor (0.19.1)
thread_safe (0.3.4)
tilt (1.4.1)
transitions (0.1.13)
treetop (1.5.3)
polyglot (~> 0.3)
turbolinks (2.5.2)
coffee-rails
tzinfo (1.2.2)
thread_safe (~> 0.1)
uglifier (2.5.3)
execjs (>= 0.3.0)
json (>= 1.8.0)
unf (0.1.4)
unf_ext
unf_ext (0.0.6)
uuidtools (2.1.5)
vegas (0.1.11)
rack (>= 1.0.0)
webmock (1.20.4)
addressable (>= 2.3.6)
crack (>= 0.3.2)
webrobots (0.1.1)
websocket (1.2.1)
will_paginate (3.0.7)
writeexcel (1.0.4)
xpath (2.0.0)
nokogiri (~> 1.3)
我正在通过恢复旧的模式文件并手动编辑它来解决问题，但显然这并不理想。
答案 0 :(得分：0)
这两者之间存在巨大的差异，有很多潜在的候选人。我建议的第一件事就是尝试对所有宝石进行全面升级，保持手指交叉以修复错误，然后从有效的Gemfile开始，逐个添加每个宝石。一个找到罪魁祸首。
我会从paranoia和authlogic开始，因为它们各自都有activerecord依赖关系，这使得它们更有可能成为问题宝石。