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POPaperclip File Not Found Error
 

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    <p>I just switched from a paperclip rails plugin to a paperclip gem. The project is a rails 2.3 application and I am using paperclip 2.7.2 gem.</p> <p>I am getting the following odd error:</p> <pre><code>identify: unable to open image `file': No such file or directory @ error/blob.c/OpenBlob/2617. identify: no decode delegate for this image format `file' @ error/constitute.c/ReadImage/544. </code></pre> <p>Seems like paperclip is looking for a file called 'file' but I am not sure why. I didn't change any of the code we had before. It used to work, all I did was upgrade to a newer version and use a gem over a plugin.</p> <p>Any ideas?</p> <p><em><strong>Update</em></strong></p> <p>It to be a bug in paper clip where it does not parse the content of the command properly. I dug deep into the paperclip source to find:</p> <pre><code>def run(cmd, arguments = "", local_options = {}) if options[:image_magick_path] Paperclip.log("[DEPRECATION] :image_magick_path is deprecated and will be removed. Use :command_path instead") end command_path = options[:command_path] || options[:image_magick_path] Cocaine::CommandLine.path = [Cocaine::CommandLine.path, command_path].flatten.compact.uniq local_options = local_options.merge(:logger =&gt; logger) if logging? &amp;&amp; (options[:log_command] || local_options[:log_command]) Cocaine::CommandLine.new(cmd, arguments, local_options).run end </code></pre> <p>and</p> <pre><code># Uses ImageMagick to determing the dimensions of a file, passed in as either a # File or path. # NOTE: (race cond) Do not reassign the 'file' variable inside this method as it is likely to be # a Tempfile object, which would be eligible for file deletion when no longer referenced. def self.from_file file file_path = file.respond_to?(:path) ? file.path : file raise(Paperclip::NotIdentifiedByImageMagickError.new("Cannot find the geometry of a file with a blank name")) if file_path.blank? geometry = begin Paperclip.run("identify", "-format %wx%h :file", :file =&gt; "#{file_path}[0]") rescue Cocaine::ExitStatusError "" rescue Cocaine::CommandNotFoundError =&gt; e raise Paperclip::CommandNotFoundError.new("Could not run the `identify` command. Please install ImageMagick.") end parse(geometry) || raise(NotIdentifiedByImageMagickError.new("#{file_path} is not recognized by the 'identify' command.")) end </code></pre> <p>The Paperclip.run command fails to replace the :file placeholder for some reason. I verified this by running the following on the commandline:</p> <pre><code>identify :file </code></pre> <p>Monkey patching the replacement by hand yields other errors where a similar thing happens.</p>
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