Looks like you&#39;re missing [ghostscript][1]. If you are using [Homebrew][2] you can install it via:

    $ brew install ghostscript


  [1]: https://www.ghostscript.com/
  [2]: https://brew.sh/

if you are using Ubuntu or in a  docker with Ubuntu  remove and reinstall ghostscript package will fix your issue


```apt remove ghostscript  ``` &lt;br&gt;
```apt install ghostscript ```


I have a bunch of scripts to perform a task. And I really need to know the call graph of the project because it is very confusing. I am not able to execute the code because it needs extra HW and SW to do so. However, I need to understand the logic behind it. So, I need to know if there is a tool (which do not require any python file execution) that can build a call graph using the modules instead of the trace or python parser. I have such tools for C but not for python.   
Thank you.

Build a Call graph in python including modules and functions?

[Here is the HTML I am working with][1].

    

&lt;!-- begin snippet: js hide: false --&gt;

&lt;!-- language: lang-html --&gt;

    &lt;div id=&quot;outer&quot; style=&quot;min-width: 2000px; min-height: 1000px; background: #3e3e3e;&quot;&gt;
      &lt;div id=&quot;inner&quot; style=&quot;left: 1%; top: 45px; width: 50%; height: auto; position: absolute; z-index: 1;&quot;&gt;
        &lt;div style=&quot;background: #efffef; position: absolute; height: 400px; right: 0px; left: 0px;&quot;&gt;&lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;

&lt;!-- end snippet --&gt;

What I would like to happen is for the inner div to occupy 50% of the space given to its parent div(outer). Instead, is is getting 50% of the space available to the viewport, which means that as the browser/viewport shrinks in size, so does it. 

Given that the outer div has `min-width` of `2000px`, I would expect the inner div to be at least `1000px` wide.

  [1]: http://jsfiddle.net/XXm6V/

How to make div&#39;s percentage width relative to parent div and not viewport

I&#39;m on Mountain Lion and installed ImageMagick using Homebrew (minimagick is also in my Gemfile but I don&#39;t think that&#39;s relevant). [SimpleCaptcha](https://github.com/galetahub/simple-captcha) uses it in a Rails app to create CAPTCHAs. 

However, the image isn&#39;t created cause of this error:

    Error while running convert: convert: unable to read font `/usr/local/share/ghostscript/fonts/n019003l.pfb&#39; @ error/annotate.c/RenderFreetype/1123.
    convert: Postscript delegate failed `/var/folders/gd/n7rzfhkd5jd0ws8jnzsz34hr0000gn/T/magick-vzHHz4ZP&#39;: No such file or directory @ error/ps.c/ReadPSImage/830.
    convert: no images defined `/var/folders/gd/n7rzfhkd5jd0ws8jnzsz34hr0000gn/T/simple_captcha20121218-64930-1thtfpf.jpg&#39; @ error/convert.c/ConvertImageCommand/3032.

Any ideas?



ImageMagick: Error while running convert: convert: unable to read font

I'm on Mountain Lion and installed ImageMagick using Homebrew (minimagick is also in my Gemfile but I don't think that's relevant). <a href="https://github.com/galetahub/simple-captcha" target="_blank" rel="noopener noreferrer">SimpleCaptcha</a> uses it in a Rails app to create CAPTCHAs.
However, the image isn't created cause of this error:
<pre><code class="hljs language-vbnet">Error while running convert: convert: unable to read font `/usr/local/share/ghostscript/fonts/n019003l.pfb' @ error/annotate.c/RenderFreetype/1123.
convert: Postscript delegate failed `/var/folders/gd/n7rzfhkd5jd0ws8jnzsz34hr0000gn/T/magick-vzHHz4ZP': No such file or directory @ error/ps.c/ReadPSImage/830.
convert: no images defined `/var/folders/gd/n7rzfhkd5jd0ws8jnzsz34hr0000gn/T/simple_captcha20121218-64930-1thtfpf.jpg' @ error/convert.c/ConvertImageCommand/3032.
</code></pre>
Any ideas?

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

There&#39;s plenty of information about cropping images, but attempting to crop (or trim) animations produces strange results. Sometimes they flicker, or come with extra frames, or some frames crop correctly and others become offset. How do I prevent all this from happening?

How do I crop an animated gif using ImageMagick?

Current image folder path:

    public_html/images/thumbs

Output image folder path:

    public_html/images/new-thumbs

I have 10 video thumbs per video in current folder, named of image thumbs:

    1-1.jpg
    1-2.jpg
    1-3.jpg
    1-4.jpg
    1-5.jpg (Resize)
    1-6.jpg
    1-7.jpg
    1-8.jpg
    1-9.jpg
    1-10.jpg

    2-1.jpg
    2-2.jpg
    2-3.jpg
    2-4.jpg
    2-5.jpg (Resize)
    2-6.jpg
    2-7.jpg
    2-8.jpg
    2-9.jpg
    2-10.jpg

I want to resize all 5th images(*-5.jpg) to the new folder. I&#39;ve tried below command but no luck:

    mogrify 
    -path 
      public_html/images/thumbs/*-5.jpg 
    -resize 16&#215;12 
    -quality 100 
      public_html/images/new-thumbs/*-5.jpg




Batch resize images and output images to new folder with ImageMagick

Canon DSLRs appear to save photos in landscape orientation and uses `exif::orientation` to do the rotation.

**Question:** How can imagemagick be used to re-save the image into the intended orientation using the exif orientation data such that it no longer requires the exif data to display in the correct orientation?

Detect EXIF Orientation and Rotate Image using ImageMagick

I have five images of sizes: 600x30, 600x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively.

How do I merge them Horizontally to make an image of size 3210x30 with ImageMagick?

Merge Images Side by Side (Horizontally)

I get `Illegal Instruction: 4` errors with binaries compiled with GCC 4.7.2 under Mac OS X 10.8.2 (&quot;Mountain Lion&quot;), when those binaries are run under Mac OS X 10.7.x (&quot;Lion&quot;) and earlier versions. The binaries work properly under Mac OS X 10.8.x.

I added `-mmacosx-version-min=10.5` to my compile flags and this seems to help resolve the issue for 10.5.x, 10.6.x and 10.7.x clients, whatever that issue is. 

Which gets to my question(s):

 * What is the `Illegal Instruction: 4` error?
 * Why does `-mmacosx-version-min=10.x` fix this specific error on `10.x` and greater clients?

I&#39;d like to apply this fix to my makefiles, but would like to know what it is doing before I pull the trigger. (Will I have larger binaries? Do I still have 64-bit binaries? Are there gotchas with this approach I should know about? Unintended side-effects? Etc.)

What is the &quot;Illegal Instruction: 4&quot; error and why does &quot;-mmacosx-version-min=10.x&quot; fix it?

I have been working on an app in iphone simulator for a number of weeks and it has been running well up until now, but all of a sudden has begun running very slow both when loading content and animations. I have not made any changes to my code since I last tested it successfully.

I tried restarting the simulator (multiple times) and removing the app and doing a completely clean rebuild, but no luck. I also checked my cpu usage through the monitor while the simulator is running and I am only using about 30% of my cpu and 40% of memory.

I fully understand that the simulator is never a quick as the device itself, but it seems strange that it has suddenly started running slow after such a long time, and by slow I mean less than a quarter of its original speed.

iPhone Simulator suddenly started running very slow

I am trying to instal virtualenv and/or virtualenvwrapper on a mac osx 10.8.3

I have been fighting with python for the last two days. Finally I was able to install python 2.7.4 using brew.  Before I had virtualenv installed using easy_install. Then I tried to uninstall it, trying to get my computer in the same situation as the one of my colleagues. Maybe I uninstalled it with success, maybe not. I don&#39;t know how to test it. Now I am supposed to install virtualenv using -

    pip install virtualenv

But it gives me -

    Could not find an activated virtualenv (required).

`pip install virtualenvwrapper` gives exactly the same output.

Also the variable: `PIP_RESPECT_VIRTUALENV` is null:

    echo $PIP_RESPECT_VIRTUALENV

How can I solve this issue?

Thanks

pip: Could not find an activated virtualenv (required)

How can I install gitk on a Mac?

From their official website, it seems gitk comes with Git, but the version of my Git (*git version 1.7.12.4 (Apple Git-37)*) does not come with gitk.

`brew install gitk` does not work for gitk.

Version information (copied from comments):

* [OS X v10.8.2][1] (12C2034) (Mountain Lion)
* [Xcode][2] version 4.6 (4H127)

  [1]: https://en.wikipedia.org/wiki/Git
  [2]: https://en.wikipedia.org/wiki/Xcode


Content Type	Original Author	Original Content on Stackoverflow
Question	Agis	View Question on Stackoverflow
Solution 1 - Imagemagick	cfeduke	View Answer on Stackoverflow
Solution 2 - Imagemagick	Anish Varghese	View Answer on Stackoverflow

ImageMagick: Error while running convert: convert: unable to read font

Imagemagick Problem Overview

Imagemagick Solutions

Solution 1 - Imagemagick

Solution 2 - Imagemagick

How to make div's percentage width relative to parent div and not viewport

Build a Call graph in python including modules and functions?

Attributions