Hi, while running "rails server" , i get the error . C:/Ruby192/lib/ruby/1.9.1/ rubygems.rb:762:in `report_activate_error'': Could not find Ruby Gem json (~> 1.4) (Gem::LoadError) from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:219:in `activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:254:in `block in activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `each'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:254:in `block in activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `each'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:254:in `block in activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `each'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:253:in `activate'' from C:/Ruby192/lib/ruby/1.9.1/rubygems.rb:1065:in `gem'' from C:/Ruby192/bin/rails:18:in `<main>'' Next , i gave command "gem install json" .so i get error Building native extensions. This could take a while... ERROR: Error installing json: ERROR: Failed to build gem native extension. C:/Ruby192/bin/ruby.exe extconf.rb creating Makefile make gcc -I. -IC:/Ruby192/include/ruby-1.9.1/i386-mingw32 -I/C/Ruby192/include/ruby-1.9.1/ruby /backward -I/C/Ruby192/include/ruby-1.9.1 -I. -O3 -g -Wextra -Wno-unused-parameter -Wno -parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-lo ng -O3 -Wall -o parser.o -c parser.c ../fbuffer/fbuffer.h:129:13: warning: ''fbuffer_append_long'' defined but not used ../fbuffer/fbuffer.h:136:17: warning: ''fbuffer_dup'' defined but not used ../fbuffer/fbuffer.h:149:14: warning: ''fbuffer_to_s'' defined but not used ../fbuffer/fbuffer.h:90:13: warning: ''fbuffer_append_str'' defined but not used gcc -shared -s -o parser.so parser.o -L. -LC:/Ruby192/lib -L. -LC:\\Users\\Luis\\Projects \\oss\\oneclick\\rubyinstaller\\sandbox\\tk\\lib -LC:\\Users\\Luis\\Projects\\oss\\onecli ck\\rubyinstaller\\sandbox\\tcl\\lib -LC:\\Users\\Luis\\Projects\\oss\\oneclick\\rubyinst aller\\sandbox\\libyaml\\lib -LC:\\Users\\Luis\\Projects\\oss\\oneclick\\rubyinstaller\\s andbox\\pdcurses\\lib -LC:\\Users\\Luis\\Projects\\oss\\oneclick\\rubyinstaller\\sandbox\ \openssl\\lib -LC:\\Users\\Luis\\Projects\\oss\\oneclick\\rubyinstaller\\sandbox\\zlib\\l ib -LC:\\Users\\Luis\\Projects\\oss\\oneclick\\rubyinstaller\\sandbox\\iconv\\lib -LC:\\U sers\\Luis\\Projects\\oss\\oneclick\\rubyinstaller\\sandbox\\gdbm\\lib -LC:\\Users\\Luis\ \Projects\\oss\\oneclick\\rubyinstaller\\sandbox\\libffi\\lib -Wl,--enable-auto-image-ba se,--enable-auto-import parser-i386-mingw32.def -lmsvcrt-ruby191 -lshell32 -lws2_32 c:/rhostudio/devkit/mingw/bin/../lib/gcc/mingw32/4.5.1/../../../../mingw32/bin/ld.exe: ca nnot find -lmsvcrt-ruby191 collect2: ld returned 1 exit status make: *** [parser.so] Error 1 Gem files will remain installed in C:/Ruby192/lib/ruby/gems/1.9.1/gems/json-1.6.5 for ins pection. Results logged to C:/Ruby192/lib/ruby/gems/1.9.1/gems/json-1.6.5/ext/json/ext/parser/gem_ make.out CAN ANYONE HELP ME??? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.