It might because the terminal not having rvm shell configuration loaded.

Try following from your terminal:

    $ source ~/.rvm/scripts/rvm
then

    $ type rvm | head -n 1

If the output is:

    rvm is a function

You may need to add &quot;source ~/.rvm/scripts/rvm&quot; to your ~/.bash_profile file

you need to read all the texts that are displayed when you install RVM:

    rm -rf ~/.rvm
    curl -L https://get.rvm.io | bash -s stable


after you run `sudo curl -L https://get.rvm.io | bash -s stable --ruby`


**you need to close the terminal ,then open again!**

This worked for me: 

    rm -rf ~/.rvm
    curl -L https://get.rvm.io | bash -s stable

For a long-term solution, you should add this to your `~/.profile` file:

    [[ -s &quot;$HOME/.rvm/scripts/rvm&quot; ]] &amp;&amp; source &quot;$HOME/.rvm/scripts/rvm&quot;


to simply load rvm into a single terminal, use 

    source &quot;$HOME/.rvm/scripts/rvm&quot;

supposedly this call is more cross-platform:

    . &quot;$HOME/.rvm/scripts/rvm&quot;


Close and restart terminal after installing RVM — gets me EVERY TIME. 

To start using RVM, you&#39;ll need to enter `source /Users/yourusername/.rvm/scripts/rvm` into your terminal (of course, insert your real username in place of `yourusername`).

As suggested by @mpapis, Do this first


```$ rm -rf ~/.rvm```

```$ curl -L https://get.rvm.io | bash -s stable```

Then, as suggested by @peterpengnz, do this and you should be fine with RVM cmd issues

```$ source ~/.rvm/scripts/rvm```

I&#39;m using the following code based on loadspeed.js example to open up a https:// site which requires http server authentication as well.

    var page = require(&#39;webpage&#39;).create(), system = require(&#39;system&#39;), t, address;
    
    page.settings.userName = &#39;myusername&#39;;
    page.settings.password = &#39;mypassword&#39;;
    
    if (system.args.length === 1) {
        console.log(&#39;Usage: scrape.js &lt;some URL&gt;&#39;);
        phantom.exit();
    } else {
        t = Date.now();
        address = system.args[1];
        page.open(address, function (status) {
            if (status !== &#39;success&#39;) {
                console.log(&#39;FAIL to load the address&#39;);
            } else {
                t = Date.now() - t;
                console.log(&#39;Page title is &#39; + page.evaluate(function () {
                    return document.title;
                }));
                console.log(&#39;Loading time &#39; + t + &#39; msec&#39;);
            }
            phantom.exit();
        });
    }  

Its failing to load the page all the time. What could be wrong here? Are secured sites to be handled any differently? The site can be accessed successfully from browser though.

I&#39;m just starting with Phantom right now and find it too good to stop playing around even though i&#39;m not moving forward with this issue.

PhantomJS failing to open HTTPS site

I have an array I&#39;d like to turn into a `List`, in order to modify the contents of the array.

Stack Overflow has plenty of questions/answers that address `Arrays.asList()` and how it only provides a List view of the underlying array, and how attempting to manipulate the resulting List will generally throw an `UnsupportedOperationException` as methods used to manipulate the list (e.g. `add()`, `remove()`, etc.) are not implemented by the List implementation provided by `Arrays.asList()`.

But I can&#39;t find an example of how to turn an array into a mutable List.  I suppose I can loop through the array and `put()` each value into a new List, but I&#39;m wondering if there&#39;s an interface that exists to do this for me.

Create mutable List from array?

Really, I don&#39;t know what happened. Excuse me if this question is so NOOB, but I can&#39;t find the solution for this problem.

&gt;-bash: rvm: command not found

I tried this

&gt;curl -L https://get.rvm.io | bash -s -- --version latest 

but still nothing I need to see the ruby version for use the simplecov because it not works with older version from 1.9 

rvm: command not found MAC OX

Really, I don't know what happened. Excuse me if this question is so NOOB, but I can't find the solution for this problem.
>-bash: rvm: command not found
I tried this
>curl -L <a href="https://get.rvm.io" target="_blank" rel="noopener noreferrer">https://get.rvm.io</a> | bash -s -- --version latest
but still nothing I need to see the ruby version for use the simplecov because it not works with older version from 1.9

I have recently got a mac an am not used to developing on a mac at all.

I have MAMP Pro 1.9.6.1. I did a locate on `php.ini` and got this:

    $ locate php.ini
    /Applications/MAMP/conf/php5.2/php.ini
    /Applications/MAMP/conf/php5.3/php.ini
    /Library/Application Support/appsolute/MAMP PRO/conf/php.ini
    /private/etc/php.ini.default

I changed the name of all of them. Restarted MAMP. It loaded without a hitch (I know odd right?). I am using PHP version 5.2.

All of these files are now different names (done one by one for process of elimination).
So I figure restart the mac. Same, MAMP loaded no problems, even though all of the `php.ini` files had been move. On Lamp this that wouldn&#39;t even load. But either there is another `php.ini` file I&#39;m missing (quite possible I don&#39;t know how to `updatedb`), MAMP is really intelligent and just pulls in all of them (less likely) or it doesn&#39;t use one.

Where does MAMP keep its php.ini?

Made the upgrade to Mac OS X 10.8 (Mountain Lion) and get now the following error when trying to call `$ pip`:

    Traceback (most recent call last):
      File &quot;/usr/local/bin/pip&quot;, line 5, in &lt;module&gt;
        from pkg_resources import load_entry_point
      File &quot;/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py&quot;, line 2603, in &lt;module&gt;
        working_set.require(__requires__)
      File &quot;/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py&quot;, line 666, in require
        needed = self.resolve(parse_requirements(requirements))
      File &quot;/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py&quot;, line 565, in resolve
        raise DistributionNotFound(req)  # XXX put more info here
    pkg_resources.DistributionNotFound: pip==1.1


Update: Tried to reinstall by doing the install procedure again (with http://www.pip-installer.org/en/latest/installing.html#using-the-installer and `easy_install`), but didn&#39;t work, got the same error.

Tried now the following: Calling `$ sudo pip` and the above error disappears. Strange is, that the directories which could not befound in the above error message point to /System/Library/... while the python installation is (new ?) to find in /Library/Frameworks/..:

    $ which python
    /Library/Frameworks/Python.framework/Versions/Current/bin/python

Any idea how to get rid of the sudo?

Python pip broken after OS X 10.8 upgrade

Go to this ultra-simple fiddle in a Webkit browser and click on on of the inputs:

http://jsfiddle.net/eK4TT/

&lt;!-- language: lang-html --&gt;

    &lt;input type=&quot;text&quot;&gt;
    &lt;input type=&quot;text&quot;&gt;
    &lt;input type=&quot;text&quot;&gt;
    &lt;a href=&quot;#&quot;&gt;my first link&lt;/a&gt;
    &lt;a href=&quot;#&quot;&gt;my second link&lt;/a&gt;
    &lt;a href=&quot;#&quot;&gt;my third link&lt;/a&gt;

Then, notice that you can keyboard navigate through both the inputs and the links using the &lt;kbd&gt;Tab&lt;/kbd&gt; key (and &lt;kbd&gt;Shift&lt;/kbd&gt;+&lt;kbd&gt;Tab&lt;/kbd&gt; to navigate in reverse order).

Now, look at the same fiddle in Firefox on Mac OS and do the same thing. The inputs receive focus, but the links won&#39;t receive focus. It&#39;s not a CSS display problem. The focus leaps from the last input to the URL bar.

I&#39;ve tried endless combinations of `tabindex` declarations in the markup, and to no avail, e.g.:

http://jsfiddle.net/eK4TT/1/

What the heck is going on here? I will accept any answer that has:

a) a fiddle working in Firefox  
b) an explanation of what exactly is going on here in Mozilla&#39;s head. It appears to contradict the [spec][1].


  [1]: http://www.w3.org/TR/WCAG20-TECHS/H4

How to allow keyboard focus of links in Firefox?

Every time I try to export an APK from Eclipse (tried Juno and Indigo) on Mac, eclipse crashes after a few seconds

This used to work fine on my current setup.

Running the app straight (debug mode) on my phone works fine.

The error from the console is:

    Invalid memory access of location 0x10073f113 rip=0x101f656f7
    Bus error: 10

I&#39;m using Mac OS X 10.7.4 on a ~2010 MacBook Pro, with the following java:

    java version &quot;1.6.0_33&quot;
    Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-11M3720)
    Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)

I&#39;m using ADT 20.

I&#39;ve tried reinstalling Eclipse and the Android SDK, and re-downloading ADT.

The Eclipse error view doesn&#39;t show anything


Any ideas of different methods I can try, or other ways to investigate what&#39;s going wrong?

Cheers

Update: For anyone coming along post-2014, you should be using &lt;a href=&quot;https://developer.android.com/sdk/installing/studio.html&quot;&gt;Android Studio&lt;/a&gt;, which doesn&#39;t have this problem.

Exporting APK from eclipse (ADT) silently crashes

Can someone give an example of sending a test notification from a Cocoa app to Notifications Center? eg. when I click on an ``NSButton``

Send notification to Mountain lion notification center

I have a view `AttributeView` that contains all sorts of attributes. There&#39;s also a button that when pressed, it should set the default values to the attributes. I also have a `ViewModelBase` class that is a base class for all ViewModels I have.
The problem is I can&#39;t seem to get the button bound to the command with WPF.

I&#39;ve tried this, but it just doesn&#39;t do anything:

    &lt;Button Command=&quot;{Binding DataInitialization}&quot; Content=&quot;{x:Static localProperties:Resources.BtnReinitializeData}&quot;&gt;&lt;/Button&gt;

The command is defined (in the `ViewModelBase`) like this:

    public CommandBase DataInitialization { get; protected set; }

and on application startup a new instance is created for the command:

    DataInitialization = new DataInitializationCommand()

However, the WPF binding doesn&#39;t seem to &quot;find&quot; the command (pressing the button does nothing). The ViewModel used in the current view is derived from the `ViewModelBase`. What else I can try (I&#39;m quite new to WPF so this might be a very simple question)?

How to bind WPF button to a command in ViewModelBase?

I just started using Vim as an IDE. I was using it as a test editor for a while now, so I didn&#39;t have to go to command mode very often. But, since I program in Java, I have to go to command mode to make the file, compile/run it... etc. 

The problem is: I need a good way to switch between the two modes. 

I looked online and it says that the `&lt;Esc&gt;` key is supposed to do that, but that doesn&#39;t work for me (maybe it&#39;s not for gVim? I don&#39;t know why.)

I have to press &lt;kbd&gt;CTRL&lt;/kbd&gt;&lt;kbd&gt;O&lt;/kbd&gt; every time to go to command mode; the escape key works from that mode... it brings me back to insert mode. But is there a better, or easier, way of switching between command mode and insert mode?
 

How do I switch between command and insert mode in Vim?

When I type `python` into the command line, the command prompt says `python is not recognized as an internal or external command, operable program, or batch file`. What should I do?

Note: I have Python 2.7 and Python 3.2 installed on my computer.

Python command not working in command prompt

I know in bash I can run one command after another by separating them by semicolons, like

    $ command1; command2

Or if I only want `command2` to run only if `command1` succeeds, using `&amp;&amp;`:

    $ command1 &amp;&amp; command2

This works, but if I suspend `command1` using `Ctrl-z`, in the first case, it runs `command2` immediately, and in the second case, it doesn&#39;t run it at all.  How can I run commands in sequence, but still be able to suspend the first command, but not have the second run until I have restarted it (with `fg`) and it finishes?  I&#39;d prefer something as simple to type as possible, as I would like to do this interactively.  Or maybe I just need to set an option somewhere.

By the way, what is the proper term for what `Ctrl-z` does?

Run one command after another, even if I suspend the first one (Ctrl-z)

I happen to run some commands blindly, in order to get things done.

I started to work with [Jenkins][1] recently, and then I had to use this `export` command to run the [Jenkins WAR archive][2]. What does the `export` command do in general, and why do we need to run this command, while running Jenkins (after the Jenkins home is set)?

  [1]: https://en.wikipedia.org/wiki/Jenkins_%28software%29
  [2]: https://updates.jenkins-ci.org/download/war/



What does the &#39;export&#39; command do?

I have seen other people with the same issue of [installing RMagick on Mountain Lion](https://stackoverflow.com/questions/11676844/issue-with-installing-imagemagick-and-rmagick-on-mountain-lion) However none of the suggested solutions have allowed me to successfully install rmagick. 

Here is the error message I am getting:

    Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
    checking for Ruby version &gt;= 1.8.5... yes
    checking for /usr/local/bin/gcc-4.2... yes
    checking for Magick-config... yes
    checking for ImageMagick version &gt;= 6.4.9... yes
    checking for HDRI disabled version of ImageMagick... yes
    checking for stdint.h... yes
    checking for sys/types.h... yes
    checking for wand/MagickWand.h... yes
    checking for InitializeMagick() in -lMagickCore... no
    checking for InitializeMagick() in -lMagick... no
    checking for InitializeMagick() in -lMagick++... no
    Can&#39;t install RMagick 2.13.1. Can&#39;t find the ImageMagick library or one of the dependent    libraries. Check the mkmf.log file for more detailed information.

    *** 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.

Things I have done:

    Installed XCode
    Installed the command line tools
    Installed XQuartz
    Installed homebrew with imagemagick library
    Installed most recent version of RVM
    Symlinked GCC
    Uninstalled and reinstalled both RVM and imagemagick


Any ideas why I still can&#39;t download rmagick?

Error installing Rmagick on Mountain Lion

In OS X in rvm how do I check if openssl is configured properly?
I get the `cannot load such file -- openssl (LoadError)`
And I have tried everything in https://stackoverflow.com/questions/3464098/rails-3-no-such-file-to-load-openssl with no success.

cannot load such file -- openssl (LoadError)

Using rvm I upgraded my ruby to 1.9.3-p392, also added 2.0.0, anytime I try to use this version when I run my bundle command I get this error.

    Could not load OpenSSL.
    You must recompile Ruby with OpenSSL support or change the sources in your Gemfile from &#39;https&#39; to &#39;http&#39;. Instructions for compiling with OpenSSL using RVM are
    available at rvm.io/packages/openssl.

I have followed several different instructions on how to fix this. I have tried removing the version and installing it with the rvm options

    --with-openssl-dir=$HOME/.rvm/usr

I have installed OpenSSL with rvm, and macports. Both have not helped the problem. I even changed the file location of the ssl cert using this:

    export SSL_CERT_FILE=/Users/DarkLord/.rvm/usr/ssl/cert.pem

No matter what I do I continue to get the error. 
Can someone please help me fix this?


Ruby and &quot;You must recompile Ruby with OpenSSL support or change the sources in your Gemfile&quot;

I am new to Ruby and trying to wrap my head around following concepts: bundler vs RVM vs gems vs RubyGems vs gemsets vs system rub and I&#39;m confused.

Can someone please describe a &#39;best practice&#39; of how I should manage all this on a fresh install of the latest version of Ubuntu? What should I install, and how should I use it all? 

I&#39;m guessing that doing a `sudo apt-get install ruby` is not be recommended, but I am not sure. I tried it on my system in addition to &#39;all the other Ruby stuff&#39;. It&#39;s just adding to my confusion. I am not talking about Rails but just regular Ruby gems (e.g. Vagrant, Chef, scripts).

bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby

I use RVM, the [Ruby Version Manager](https://rvm.io/) to specify a Ruby version and a set of gems for each of my Rails projects.

I have a `.rvmrc` file to automatically select a Ruby version and gemset whenever I `cd` into a project directory.

After installing RVM 1.19.0, I get a message

&gt; You are using `.rvmrc`, it requires trusting, it is slower and it is
&gt; not compatible with other ruby managers, you can switch to
&gt; `.ruby-version` using `rvm rvmrc to [.]ruby-version` or ignore this
&gt; warnings with `rvm rvmrc warning ignore
&gt; /Users/userName/code/railsapps/rails-prelaunch-signup/.rvmrc`,
&gt; `.rvmrc` will continue to be the default project file in RVM 1 and RVM
&gt; 2, to ignore the warning for all files run `rvm rvmrc warning ignore
&gt; all.rvmrcs`.

Should I continue using my `.rvmrc` file or should I switch to a `.ruby-version` file? Which is optimal? What are the ramifications?


Content Type	Original Author	Original Content on Stackoverflow
Question	Asantoya17	View Question on Stackoverflow
Solution 1 - Macos	peterpengnz	View Answer on Stackoverflow
Solution 2 - Macos	mpapis	View Answer on Stackoverflow
Solution 3 - Macos	parkerqian	View Answer on Stackoverflow
Solution 4 - Macos	DonRichards	View Answer on Stackoverflow
Solution 5 - Macos	Wilson Silva	View Answer on Stackoverflow
Solution 6 - Macos	Alexander Mills	View Answer on Stackoverflow
Solution 7 - Macos	David J Roach V	View Answer on Stackoverflow
Solution 8 - Macos	CodeBiker	View Answer on Stackoverflow
Solution 9 - Macos	k9x	View Answer on Stackoverflow

rvm: command not found MAC OX

Macos Problem Overview

Macos Solutions

Solution 1 - Macos

Solution 2 - Macos

Solution 3 - Macos

Solution 4 - Macos

Solution 5 - Macos

Solution 6 - Macos

Solution 7 - Macos

Solution 8 - Macos

Solution 9 - Macos

Create mutable List from array?

PhantomJS failing to open HTTPS site

Attributions