rails g model mapを仕様としたところ

例のエラーが出ました。
encoding の種類の異なる文字列を連結させようとすると起きるエラーで在るということはわかったので、色々やってみたのですが、
具体的には下記のほかにどのようなことを施せば良いのでしょうか。

log

from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:270:in `block (3 levels) in shush_backtraces'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:270:in `reject!'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:270:in `ensure in block (2 levels) in shush_backtraces'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:270:in `block (2 levels) in shush_backtraces'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/activesupport-4.1.6/lib/active_support/dependencies.rb:236:in `rescue in load_dependency'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/activesupport-4.1.6/lib/active_support/dependencies.rb:229:in `load_dependency'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/activesupport-4.1.6/lib/active_support/dependencies.rb:241:in `load'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/commands/rails.rb:6:in `call'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/command_wrapper.rb:38:in `call'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:184:in `block in serve'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:157:in `fork'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:157:in `serve'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:132:in `block in run'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:126:in `loop'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:126:in `run'
from /Users/Sean/Documents/今後処理/psara-institute/vendor/bundle/ruby/2.1.0/gems/spring-1.3.3/lib/spring/application/boot.rb:18:in `<top (required)>'
from /Users/Sean/.rbenv/versions/2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:51:in `require'
from /Users/Sean/.rbenv/versions/2.1.0/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:51:in `require'
from -e:1:in `<main>'

config/environment.rb

# Load the Rails application.
require File.expand_path('../application', __FILE__)
# Initialize the Rails application.

Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8

Rails.application.initialize!
... 続く