If you run into any errors typically the main error that I see here whenever I'm creating a new environment and I run into an error at this stage it usually is related to those GPG keys and so if you run into it usually it will give you or every single time I've had it happen.
#NEW RAILS POSTGRES APP INSTALL#
So type in whatever your system password is and then it's going to see if it can install that version of Ruby and so far it looks like it is working. It's going out and it's grabbing RVM, it's grabbing the specific version of Ruby and here it's asking for my password. Switch over into the terminal and let's paste it and run it and let's see if this works. I want to go with this one because I want RVM and then I also want to bring in the latest stable version of Ruby so I'm going to copy this So let's switch back move down to the installation and I'm going to go with the second one so if you're curious about what the differences are right here we have just a plain RVM install and then we have one with a specific version of Ruby and then we have some that even install rails and some different components like that.
Many times they even give you the command to run in case you run into an error.īut we're not going to actually know until we go on to the next step. If they happen to you too then we can go through them together but if not the recommendations that the error messages give are incredibly explicit. So first step is a security item where we need to install the GPG keys so this is going to allow us to have a more secure connection to the outside system so I'm going to just triple click on this copy itĪnd now we can open up the terminal and I'm going to increase the font here just to make it a little easier for you to see what's going on and I can now paste this in.Īnd this part of the installation I have had some errors in the past so if you follow along and you run into errors I actually kind of hope I run into some errors so that you can follow along. It's going to go use the older versions so it's a really nice way being able to manage your dependencies. Well, I can take and use a tool like RVM to simply switch Ruby versions and then it also switches all of those and nested dependencies all those nested gems. This happens to me quite often and that older application is built in Ruby 2.2.
So what that means is if you are building rails applications and you want to build using Ruby 2.5 then all of the gems and all of these 3rd party libraries they want to add in in order to do that can be nested inside of a specific version and then imagine that you're a freelancer and you need to go work on an older application. And so this is going to give us the ability to have multiple versions of Ruby and also to nest our dependencies inside of specific Ruby version. If I go to rvm and this is going to be rvm.io /rvm/install then this is going to allow us to install the ruby version manager on our virtual box. So the very first thing that I'm going to do is I want to install the RVM system.
#NEW RAILS POSTGRES APP MAC#
So I definitely recommend that even if you're on a Mac and you could follow along and do everything on your local machine that you still follow these guides because the same process is what you're going to do if you ever build or you need to build out your own server to actually serve the application on the web. So if you go through this process then you're going to have a leg up on anyone else because you've already installed the entire rail system directly on a Linux machine. And one thing that I want to say that I think is actually a good thing when it comes to following this path is that if you want to build and deploy applications nine times out of 10 if you're not using a tool like Heroku for your deployments you're going to have to build out a Linux server and the process that we're going to go through right now is very similar to that.
#NEW RAILS POSTGRES APP PC#
However, if you have a Windows PC you can build the exact same applications and you can leverage the Linux operating system in order to do it. Now you may think that you need a Macintosh computer in order to go and build rails applications and the majority of the Rails developers I know do use Apple products.
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