error on install of learn-co or learn-generate

[PhreeMason]

Steps to reproduce:
open terminal and run gem install learn-generate

results output:

C:\Users\Apple>gem install learn-generate
ERROR: While executing gem ... (Errno::EINVAL)
Invalid argument @ rb_sysopen - C:/tools/ruby24/lib/ruby/gems/2.4.0/gems/lea
rn-generate-1.0.16/lib/templates/ios/.liftoff/templates/<%= prefix %>AppDelegate
.h

currently running this command on a system windows 7 ultimate 64 bit machine