问题
I am getting the following error while installing:
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/json_web_token-0.3.2/lib/json_web_token.rb:36: warning: already initialized constant JWT
C:/RailsInstaller/Ruby2.2.0/lib/ruby/gems/2.2.0/gems/jwt-1.5.6/lib/jwt/json.rb:4: warning: previous definition of JWT was here
rake aborted!
LoadError: Could not open library 'libcurl': The specified module could not be found.
.
Could not open library 'libcurl.dll': The specified module could not be found.
.
Could not open library 'libcurl.so.4': The specified module could not be found.
.
Could not open library 'libcurl.so.4.dll': The specified module could not be found.
D:/data/catarse/config/application.rb:8:in'
D:/data/catarse/Rakefile:4:in'
(See full trace by running task with --trace)
回答1:
An easy way I got around the LoadError: Could not open library 'libcurl' was to:
Take a
libcurl.dllfrom one of the packages found here, https://curl.haxx.se/download.html#Win64, and put it on the PATH.(I just put it under
\ruby24\bin\)(Link was updated, but originally pointed to version
7.40)
For further details, see the answers to these questions:
jekyll serve dependency error - Could not open 'lib curl'
Typhoeus Windows installation
How to solve 'libcurl' not found with Rails on Windows
Rails Typhoeus Curl Trouble
来源：https://stackoverflow.com/questions/41114671/how-to-install-libcurl-on-windows-7-64bit