Fix error "invalid byte sequence in US-ASCII" in .js.erb files
This error can happen in Ruby 1.9.
To fix it, add the following line to the top of your .js.erb file:
<%# @encoding: UTF-8 %>
Related cards:
Fix error: Invalid gemspec / Illformed requirement
When you get an error like this:
Invalid gemspec in [/opt/www/foo-project.makandra.de/shared/bundle/ruby/1.8/specifications/carrierwave-0.6.2.gemspec]: Illformed requirement ["#<YAML::Syck::DefaultKey:0x7fda6f84d2e8> 1.1.4"]
... the mach...
How to fix Passenger "Unexpected end-of-file detected" error
This is for you if Passenger gives you the following useless error message.
Passenger encountered the following error:\
The application spawner server exited unexpectedly: Unexpected end-of-file detected.
- Exception class:
- PhusionPas...
Fix error: rails console No such file to load -- irb/encoding_aliases.rb (LoadError)
I got this error after upgrading Ruby from 2.4.5 to 2.6.4 when I opened the Rails console - rails server still worked.
Running via Spring preloader in process 14679
Loading development environment (Rails 5.2.2.1)
Traceback (most recent call...
Fix error: rails console - no such file to load -- readline
Install libreadline:
sudo apt-get install libreadline-dev
Reinstall the ruby and tell rvm where to find readline
rvm reinstall 1.8.7 --with-readline-dir=/usr/include/readline
Make sure you get a huge cup of tea before running the com...
Fix capistrano errors: "no such file to load -- net/ssh/authentication/agent/socket" or "uninitialized constant Net::SSH::KnownHosts::SUPPORTED_TYPE"
There is a conflict between current capistrano versions and the 2.5.1 net-ssh gem. Make sure you upgrade to 2.5.2, then it should work again.
Fix „rvm no such file to load -- openssl“ or "rvm no such file to load -- zlib"
For example if you use rvm and get this message:
ERROR: Loading command: install (LoadError)
no such file to load -- zlib
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::Commands::InstallCommand
...
Fix "libmysqlclient.so.20: cannot open shared object file: No such file or directory"
This error can be caused by the mysql2 gem under mysterious circumstances. You need to remove it with gem uninstall mysql2 and then reinstall it (or just run bundle).
gem pristine mysql2 will not be enough.
Fix "An error occurred while installing debugger-linecache" with Ruby 1.9.3
You're better off using debugger-ruby_core_source:
gem install debugger-ruby_core_source
If you can't do this, try the following.
Here is how to fix the following error when installing the debugger gem fails:
Gem::Instal...
HTTP headers can only transport US-ASCII characters safely
HTTP header values must only contain low-ASCII (7-bit) characters for safe transport. From RFC 7230:
Historically, HTTP has allowed field content with text in the ISO-8859-1 charset [ISO-8...
How to fix: "unexpected token" error for JSON.parse
When using the json gem, you might run into this error when using JSON.parse:
>> json = 'foo'.to_json
>> JSON.parse(json)
JSON::ParserError: 757: unexpected token at '"foo"'
from /.../gems/json-...