When running install_gems.rb, the following error is shows:
E:/Ruby22-x64/lib/ruby/2.2.0/open3.rb:193:in 'spawn': Permission denied - E:\Ruby22-x64\bin install rubygems-update -v 2.7.6 --no-ri --no-rdoc (Errno::EACCES) from E:/Ruby22-x64/lib/ruby/2.2.0/open3.rb:193:in 'popen_run' from E:/Ruby22-x64/lib/ruby/2.2.0/open3.rb:93:in 'popen3' from E:/Connector/install_gems.rb:73:in 'run_command' from E:/Connector/install_gems.rb:39:in 'block (2 levels) in main' from E:/Connector/install_gems.rb:37:in 'each' from E:/Connector/install_gems.rb:37:in 'block in main' from E:/Connector/install_gems.rb:35:in 'chdir' from E:/Connector/install_gems.rb:35:in 'main' from E:/Connector/install_gems.rb:84:in '<main>'
This is caused by having GEM_COMMAND set incorrectly. In the example above, the install_gems.rb is actually trying to execute E:\Ruby22-x64\bin, which is a folder and not executable.
You can verify the GEM_COMMAND with the following commands:
GEM_COMMAND should be set to point to the actual gem command in the ruby bin directory.
In the example above, ruby is installed in E:\Ruby22-x64. The gem command is in the bin folder so GEM_COMMAND should be set to E:\Ruby22-x64\bin\gem
Any currently open command prompts will need to be closed in order to ensure that the updated environment variable is applied.
Make sure you are not overriding GEM_COMMAND in the User section of the environment variables as shown in the image below. The System settings shows a valid configuration, however it is being overridden by the User variable which is incorrect.
<Please see attached file for image>