getting this error while running a ruby script - ruby

2: from apk-embed-payload.rb:9:in `<main>'
1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- colorize (LoadError)

It looks to me like you have a require 'colorize' in your code, but the gem colorize is not installed. You can install the gem by running:
gem install colorize
I assume you have gem installed. Otherwise you need to install it as well.

Related

How can I fix charlock_holmes gem so it works on opensuse Tumbleweed?

I can install charlock_holmes gem on opensuse, trying to open it up in irb quickly, I get this:
> irb
2.3.0 :001 > require 'charlock_holmes'
LoadError: /home/wpostma/.rvm/gems/ruby-2.3.0/gems/charlock_holmes-0.7.3/lib/charlock_holmes/charlock_holmes.so:
undefined symbol: _ZTIN6icu_538ByteSinkE - /home/wpostma/.rvm/gems/ruby-2.3.0/gems/charlock_holmes-0.7.3/lib/charlock_holmes/charlock_holmes.so
from /home/wpostma/.rvm/rubies/ruby-2.3.0/lib64/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/wpostma/.rvm/rubies/ruby-2.3.0/lib64/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/wpostma/.rvm/gems/ruby-2.3.0/gems/charlock_holmes-0.7.3/lib/charlock_holmes.rb:1:in `<top (required)>'
from /home/wpostma/.rvm/rubies/ruby-2.3.0/lib64/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `require'
from /home/wpostma/.rvm/rubies/ruby-2.3.0/lib64/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `rescue in require'
from /home/wpostma/.rvm/rubies/ruby-2.3.0/lib64/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in `require'
from (irb):1
from /home/wpostma/.rvm/rubies/ruby-2.3.0/bin/irb:11:in `<main>'
2.3.0 :002 >
It looks to me like maybe something in charlock_holmes is incompatible with the libicu version inside tumbleweed.
I'm using ruby installed with rvm, and purging all my gemsets and reinstalling does not fix it. Any other ways to get charlock_holmes to work? Maybe I need to install a special copy of libicu (earlier, older) and point the gem at it?
Either of these works. For me the bundle config option works better.
This is a direct command to install the gem, directing it towards the correct libicu version:
gem install charlock_holmes -- --with-icu-dir=/usr/local
This is a command to tell which ever ruby project I install later on this system, will get gems installed by bundler to just work instead of breaking:
bundle config build.charlock_holmes "--with-icu-dir=/usr/local" --global
Since I'm using rvm the above bundle configuration seems to be "global" to that rvm environment only.
In my case, the bundle config is helpful as a large series of actions that would have otherwise failed (installing gems, and bootstrapping a large rails application) just worked.

ta-lib gem not installing dependencies?

I am trying to run a simple example script from here, but even after installing requisite gems with no errors I get an error when running the script. It looks like libta_lib.so cant be found, but nothing in the install commands below had an error. Any idea what I am missing? Im happy to provide more data if needed, I just dont know what would be useful.
I ran:
#compiling ta-lib from source
gem uninstall talib_ruby
gem uninstall ta-indicator
make clean
sudo ./configure LDFLAGS="-lm"
sudo make
sudo make install
gem install talib_ruby
gem install ta-indicator
king#death-star ~/Desktop/_REPOS/misc/stock_analysis/forex/oanda/ruby $ ruby -e "require 'talib_ruby'; l = TaLib::Function.new('MA') "
/home/king/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': libta_lib.so.0: cannot open shared object file: No such file or directory - /home/king/.rvm/gems/ruby-2.3.0/gems/talib_ruby-1.0.6/lib/talib.so (LoadError)
from /home/king/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/king/.rvm/gems/ruby-2.3.0/gems/talib_ruby-1.0.6/lib/talib_ruby.rb:5:in `<top (required)>'
from /home/king/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `require'
from /home/king/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:127:in `rescue in require'
from /home/king/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in `require'
from -e:1:in `<main>'
As per this follow these steps
sudo gedit /etc/ld.so.conf
Append below line and save:
include /usr/local/lib
run sudo /sbin/ldconfig

require 'rubygems' and requre 'RedCloth' is not working. How can I fix it?

I'm learning Ruby from "Beginning Ruby from Novice to Professional" by Peter Cooper. I am on Chapter 7. I have ruby 2.0 installed. I am facing this error:
C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- 2.0/redcloth_scan (LoadError)
When trying to run this code:
require 'rubygems'
require 'RedCloth'
r = RedCloth.new("This is a *test* of _using RedCloth_")
puts r.to_html
I'm getting this result:
ruby redcloth.rb
C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- 2.0/redcloth_scan (LoadError)
Couldn't load 2.0/redcloth_scan
The $LOAD_PATH was:
C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/lib
C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/lib/case_sensitive_require
C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/ext
C:/Ruby200/lib/ruby/site_ruby/2.0.0
C:/Ruby200/lib/ruby/site_ruby/2.0.0/i386-msvcrt
C:/Ruby200/lib/ruby/site_ruby
C:/Ruby200/lib/ruby/vendor_ruby/2.0.0
C:/Ruby200/lib/ruby/vendor_ruby/2.0.0/i386-msvcrt
C:/Ruby200/lib/ruby/vendor_ruby
C:/Ruby200/lib/ruby/2.0.0
C:/Ruby200/lib/ruby/2.0.0/i386-mingw32
from C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/lib/RedCloth.rb:13:in `<top (required)>'
from C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `require'
from C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
from C:/Ruby200/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:144:in `require'
from redcloth.rb:2:in `<main>'
Exit code: 1
I already installed ruby gems and RedCloth. They didn't give me an errors. If somebody could shed some light on this topic it would be greatly appreciated.
try this:
goto into C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/lib
and create a dir named '2.0'.
Then copy redcloth_scan.so from 'C:/Ruby200/lib/ruby/gems/2.0.0/gems/RedCloth-4.2.9-x86-mingw32/lib' into '2.0' dir.
I installed in past RedCloth with Ruby 1.9.1.
Actually I suspect that RedCloth doesn't work with Ruby 2.0.
On ruby 2.x.x you need to compile the gem.
For example for the windows ruby 2.2.4:
Setup the DevKit (https://github.com/oneclick/rubyinstaller/wiki/Development-Kit)
Run into command window:
gem install RedCloth --platform=ruby
Goto to your installed RedCloth path
lib\ruby\gems\2.2.0\gems\RedCloth-4.2.9\lib
Create there a new directory called "2.2" and copy the file redcloth_scan.so on it.
If you use the gem RedCloth-4.2.9-x86-mingw32, the redcloth_scan.so contains the ruby 1.9 dependency and it doesn't works with ruby 2.2.4.

How ruby `require` really work?

I'm using Archlinux, the ruby location was on /usr/bin/ruby
$ ruby --version
ruby 2.0.0p247 (2013-06-27 revision 41674) [i686-linux]
$ gem install ffi
Building native extensions. This could take a while...
Successfully installed ffi-1.9.0
Parsing documentation for ffi-1.9.0
Done installing documentation for ffi after 41 seconds
1 gem installed
I was using G-WAN to execute a ruby script, but when i use require 'ffi' this output shown:
/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- ffi (LoadError)
from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from /home/asd/bin/gwan_linux32-bit/127.0.0.1_8081/#127.0.0.1/csp/test.rb:1:in `<main>'
and require '/home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib/ffi.rb' shows:
/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- ffi_c (LoadError)
from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from /home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib/ffi.rb:14:in `rescue in <top (required)>'
from /home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib/ffi.rb:3:in `<top (required)>'
from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from /usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'
from /home/asd/bin/gwan_linux32-bit/127.0.0.1_8081/#127.0.0.1/csp/test.rb:21:in `<main>'
the output of p $LOAD_PATH was:
["/usr/lib/ruby/site_ruby/2.0.0" # doesn't exists
, "/usr/lib/ruby/site_ruby/2.0.0/i686-linux" # doesn't exists
, "/usr/lib/ruby/site_ruby" # doesn't exists
, "/usr/lib/ruby/vendor_ruby/2.0.0" # doesn't exists
, "/usr/lib/ruby/vendor_ruby/2.0.0/i686-linux" # doesn't exists
, "/usr/lib/ruby/vendor_ruby" # doesn't exists
, "/usr/lib/ruby/2.0.0"
, "/usr/lib/ruby/2.0.0/i686-linux"
]
the location for FFI was:
$ locate ffi.rb
/home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib/ffi.rb
/home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib/ffi/ffi.rb
/opt/jruby/lib/ruby/shared/ffi.rb
/opt/jruby/lib/ruby/shared/ffi/ffi.rb
/opt/jruby/samples/ffi/ffi.rb
so i tried to add the directory to $LOAD_PATH
$LOAD_PATH.unshift '/home/asd/.gem/ruby/2.0.0/gems/ffi-1.9.0/lib'
and now require 'ffi' shows no error..
if i already have many gems installed on ~/.gem/ruby/2.0.0/gems
$ ll ~/.gem/ruby/2.0.0/gems/ | wc
285 2558 17502
what is the correct way to use the gem? is it by adding each path to $LOAD_PATH
This is clearly a Ruby configuration issue, and the suggested RVM tool seems to address it:
RVM is a command-line tool which allows you to easily install, manage,
and work with multiple ruby environments from interpreters to sets of
gems.
As suggested by 'icktoofay', G-WAN could add support for RVM, but I am not sure that it makes sense unless RVM becomes more mainstream than Ruby itself (or assimilated by Ruby).
Now, Jesly Varghese also told us (above) that the issue comes from the fact "you are using system ruby, and calling a gem in user dir".
Did you try to install G-WAN under /opt/gwan ?
Then, this PATH issue may be gone.

require 'ruby-debug' LoadError: symbol not found

I've somehow broken my ruby configuration, and I'm not sure how to fix it. Here's an irb session:
>> require 'ruby-debug'
LoadError: dlsym(0x101a272d0, Init_ruby_debug): symbol not found - /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby_debug.bundle
from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby_debug.bundle
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-base-0.10.3/lib/ruby-debug-base.rb:1
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from /opt/local/lib/ruby/gems/1.8/gems/ruby-debug-0.10.3/cli/ruby-debug.rb:5
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
from /opt/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
from (irb):1
Here's my ruby version:
ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-darwin10]
I'm not sure how to go about diagnosing and fixing this. Any suggestions? What other info should I provide?
Reinstalling the gem didn't fix it:
$ sudo gem install ruby-debug
Password:
Successfully installed ruby-debug-0.10.3
1 gem installed
Installing ri documentation for ruby-debug-0.10.3...
Installing RDoc documentation for ruby-debug-0.10.3...
maybe it's missing some dependency .so file? I would use ldd -l to determine this in linux, dunno about mac.
Doing a fresh install of 1.8.7 via rvm fixed this problem for me.

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