Open RubyMine and navigate to File | New Project. Now it is time to create and run a simple Ruby on Rails application using RubyMine exclusively. Creating your first progeny (Should know) Each command then sets properties of the text, size, colors, circles, and finally draws a grid of lines on the page. It first requires the Gem code and then starts a block of code that will begin generating the hello.pdf file on the disk. The code that we typed in is a simple use of the Prawn Gem. You should see something like the following: Double-click on this and you will see this file in whichever application you have on your computer that displays PDF files.You should now be able to see the file hello.pdf in the project window. This will synchronize the files inside the folder with the project list. In the project window on the left, hit the icon that looks like the following: Since this program actually generates a PDF file, we need to find where it saved the file.Once completed, go back and re-run the pdf.rb program.When it is complete, select the prawn gem in the list on the right and you will see the description panel filled with various aspects of the gem for your browsing pleasure.RubyMine will then run the Gem system and install the Gem and all of its appropriate dependencies into your system. Select the Gem in the list at the left-hand side and then hit the button Install.Start typing the name of the Gem you wish to install, which in this case is prawn and the search will begin immediately.Hit the button Install Gems… and you will see a screen like the following:.This panel will allow us to install some specific Ruby Gems that we need. This is where we also changed the version of Ruby that we are using. Open the Settings panel and select the Ruby SDK and Gems panel from the left-hand list. We need to add some Ruby Gems to allow our program to continue. This means that you do not have the required technology to continue the assimilation process. You should get an error similar to in ‘require’: cannot load such file - prawn (LoadError). Now, right-click on the open source file and select Run pdf.Pdf.draw_text("You will be assimilated!", :at => ) Prawn::Document.generate("hello.pdf") do |pdf| Add the following code to this new file:.Right-click on the HelloWorld project folder in the left project panel and add a new file to your project.
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