在rails 3.1.0和ruby 1.9.2中的JavaScript运行时。不能处理heroku。做了一切，但仍然无法正常工作 [英] javascript runtime in rails 3.1.0 and ruby 1.9.2. cant deal with with heroku. Did everything, but still does not working

问题描述

请帮忙，这是我的学习项目。它在本地工作，但不在线：

您好，据说我不需要在rails 3.1.0
中使用像therubyracer这样的特殊宝石，但它会写入heroku logs：

Please help, it's my studying project. It work locally but not online:
Hello, it is said that i dont need special gems like "therubyracer" in rails 3.1.0 but it writes in "heroku logs":

    2011-10-04T23:15:30+00:00 app[web.1]: ActionView::Template::Error (Could not fin
d a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of
available runtimes.
2011-10-04T23:15:30+00:00 app[web.1]:   (in /app/app/assets/javascripts/rails.js
)):....

我试图安装therubyracer，但是我安装时遇到错误

i was trying to install "therubyracer" but i have error with installing it

C:\proj\lagp>gem install therubyracer
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing therubyracer:
        ERROR: Failed to build gem native extension.

        C:/RailsInstaller/Ruby1.9.2/bin/ruby.exe extconf.rb
checking for main() in -lpthread... no
creating Makefile

make
C:/RailsInstaller/Ruby1.9.2/bin/ruby -e "puts 'EXPORTS', 'Init_v8'"  > v8-i386-m
ingw32.def
g++ -I. -IC:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/libv8-3.3.10.2/li
b/libv8/v8/include -IC:/RailsInstaller/Ruby1.9.2/include/ruby-1.9.1/i386-mingw32.....

我还编译了compile：true并预编译

also i made compile:true and precompiled

以下是我在github上的应用程序： https： //github.com/EnotPoloskun/lagp
看看如果你有时间，我浪费了2天这个问题（

，所以我不知道该怎么办（，

在此先感谢

Here is my app in a github: https://github.com/EnotPoloskun/lagp
take a look plz if you have a time, i wasted 2 days for this problem(
so i dont know what to do(,
Thanks in advance

推荐答案

我在资产管道上使用Heroku上的Rails 3.1，另外到我的gemfile资产组中;

I'm using Rails 3.1 on Heroku with the assets pipeline, in addition to the assets group in my gemfile I have;

group :production do
 gem 'therubyracer-heroku'
end

这似乎就是你想要的，

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