从过去的两周开始，我一直在尝试在Mac上设置我的代码。以前，我使用Ubuntu，所以设置代码从未如此困难。我遵循了几乎所有教程，但没有运气。请任何人指导我在Mac上设置RoR。遵循所有教程之后，我最终只会遇到mysql错误。
rake aborted!
cannot load such file -- mysql2/mysql2
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `block in require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:236:in `load_dependency'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.14/lib/active_support/dependencies.rb:251:in `require'
/Users/sahil/Documents/work/ccprod/vendor/bundle/ruby/1.9.1/gems/mysql2-0.3.14/lib/mysql2.rb:8:in `<top (required)>'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
/Users/sahil/.rvm/gems/ruby-1.9.3-p551@global/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
/Users/sahil/Documents/work/ccprod/config/application.rb:9:in `<top (required)>'
/Users/sahil/Documents/work/ccprod/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
如果需要其他任何信息，请告诉我。从mysql网站安装的MySQL。额外细节：
Server version: 5.5.46 MySQL Community Server (GPL)
更新： Gemfile.lock文件：
GIT
remote: git://github.com/acumenbrands/acts_as_slugable.git
revision: 51c739b8dc283483e8cb68be2f48f0742dadbf3d
specs:
acts_as_slugable (1.0)
activerecord (>= 3.0.0)
GIT
remote: git://github.com/paneq/calendar_date_select.git …我创建了一个网页,并将其链接到cnd bootstrap扩展,但是当我启动网页时,我的布局看起来很简单并且展开了.这是该网站的链接
kellito14.github.io
这是下面的代码:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Home</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/style.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="source/slider.js"></script>
<script src="//connect.soundcloud.com/sdk.js"></script>
<script type="text/javascript">
function myradio(){
myWindow = window.open("radiopage.php", "_blank", "width=300, height=100");
document.getElementById('radioplayer').pause();
}
</script>
</head>
<!--<body onload="javascript: myradio()" >-->
<body>
<header>
<div class="container-fluid">
<div class="container">
<div class="row">
<div class="col-md-4">
<img src="" alt="my falcon logo" width="113" height="80">
</div>
<div class="col-md-4" >
</div>
<div class="col-md-4">
</div>
</div>
</div>
</header>
<nav class="navbar">
<div …我已经使用谷歌图表很长一段时间了.昨天我尝试在我的网页上添加一个组合图表,这导致cannot read property 'count' of undefined了谷歌Chrome和b is undefinedFirefox.我一直试图解决这个问题,但直到现在还没有成功.我读到它可能是原型的原因,但其他图表仍然正常.以下是jsfiddle 上此问题的示例.
码:
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<div id="combochart2.1" style="width: 900px; height: 500px;"></div>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart1);
function drawChart1() {
var data = new google.visualization.DataTable();
var cols = 5 ;
var rows = 4;
var cell_values = new Array();
var col_header=new Array();
var text=new Array();
data.addColumn('string', 'Questions');
col_header= "apples, orange, pineapple, rocket, spaceship".split(",");
cell_values= "1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20".split(",");
text= "Q1,Q2,Q3,Q4".split(",");
for (var k=0;k<cols;k++)
{
data.addColumn('number',col_header[k]);
}
// Add empty …我对 bootstrap 中的专栏感到非常困惑。我研究引导程序，但我无法识别列类型之间的差异。
.col-md-4
.col-xs-4
.col-sm-4
.col-lg-4
.col-sm-offset-2
我明白这些数字的含义。我理解 12 列，但 md、xs 之间有什么不同......
我查了多个网站，但都不太理解。如果您能给我有关它的详细信息，我将很高兴。