Error when deploying 1.8.7 app: "NoMethodError: undefined method `select!' for ["zlib@openssh.com", "zlib"]:Array"
Fix: downgrade net-ssh to version 2.9.1.
Related cards:
How to fix "undefined method `name' for Array" error when running bundled commands on Ruby 1.8.7 + Rails 2.3
On recent/fresh installations of Ruby 1.8.7 you may encounter this error why calling any bundled binary (or just bundle exec):
/home/arne/.rvm/gems/ruby-1.8.7-p374@global/gems/rubygems-bundler-1.4.2/lib/rubygems-bundler/noexec.rb:75:in ...
Fix Rubygems binary error: undefined method `activate_bin_path' for Gem:Module (NoMethodError)
So you're getting an error like this:
undefined method `activate_bin_path' for Gem:Module (NoMethodError)
Here is what happened:
- You installed a recent version of Rubygems
- You installed some gems that install a binary (like `bun...
NoMethodError: undefined method `cache' for Gem:Module
I got this error when running Rails 2.3 tests for Rails LTS. More stacktrace:
NoMethodError: undefined method `cache' for Gem:Module
/vagrant/rails-2-3-lts-repository/railties/lib/rails_generator/lookup.rb:212:in `e...
Fix: "undefined method `bytesize' for #<Array>"
I believe that when WEBrick has trouble bringing up your Rails application, the WEBrick component that is supposed to print you a pretty error message has a bug and sometimes fails with this message:
"undefined method `bytesize' for #<Array>"...
Fix Rubygems error: undefined method `source_index' for Gem:Module
You are probably using Ruby 1.8.7 with a too recent versions of Rubygems.
Downgrade your Rubygems to the latest version that works with 1.8.7.
See also
- [Fix Rubygems warning: Gem.source_index is deprecated, use Specifica...
Paperclip: undefined method `to_file' for #<Paperclip::Attachment:0000> (NoMethodError)
to_file has been removed in Paperclip 3.0.1.
Instead of using File to access Paperclip storage objects (like this: File.read(file.to_file.path)) you can use
Paperclip.io_adapters.fo...
Fix when assigning nested attributes raises "undefined method `to_sym' for nil:NilClass"
You might have a table without a primary key set in MySQL.
You can fix this by adding a primary key index to the guilty MySQL table, or by setting self.primary_key = "id" in your class definition.
Related, but different issue: [Rails 2 does no...
Fix error: undefined method `desc' for #<Foo::Rake::Taskx1234>
Upgrade the offending gem. If you cannot or don't want to upgrade, lock rake to 0.8.7.
Error "undefined method last_comment"
This error message may occur when rspec gets loaded by rake, e.g. when you migrate the test database.
NoMethodError: undefined method 'last_comment' for #<Rake::Application:0x0055a617d37ad0>
Rake 11 removes a method that rspec-core < 3...
no passenger served applications running error when deploying via capistrano
When deploying with capistrano it's possible you get this "error" message:
*** [err :: example.com] There are no Phusion Passenger-served applications running whose paths begin with '/var/www/example.com'.
*** [err :: example.com]
This ...