Some errors

[nzmedet]

First error nokogiri 1.6.0 cannot be installed

when using version higher, second error: libv8 cannot be installed

when installing libv8 --with-system-v8 another error rubytracer cannot be installed

when uninstalling libv8 and installing rubytracer another error libv8 cannot be installed

then i gave up,

is there any online version?

[pvorb]

@vko-online Yes, there's an online version at startupnotes.org.