I am having trouble doing gem installs, and I am getting the following
message. Any ideas on what I should try to do.
C:\Ruby19>gem install ruby-serialport
Building native extensions. This could take a while…
ERROR: Error installing ruby-serialport:
ERROR: Failed to build gem native extension.
C:/Ruby19/bin/ruby.exe extconf.rb
checking for OS… mingw
checking for termios.h… *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–without-make-prog
–srcdir=.
–curdir
–ruby=C:/Ruby19/bin/ruby
C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:364:in try_do': The complier failed to generat e an executable file. (RuntimeError) You have to install development tools first. from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:433:intry_cpp’
from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:811:in block in have_header' from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:670:inblock in
checking_for’
from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:276:in block (2 levels) in postpone' from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:250:inopen’
from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:276:in block in postpone' from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:250:inopen’
from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:272:in postpone' from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:669:inchecking_for’
from C:/Ruby19/lib/ruby/1.9.1/mkmf.rb:810:in have_header' from extconf.rb:10:in’
Gem files will remain installed in
C:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-seria
lport-0.7.0 for inspection.
Results logged to
C:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-serialport-0.7.0/ext/g
em_make.out