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So here's to you, finished project, not with the bare workflow naughty that our finished project after

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adding authentication, I didn't update any dependencies here.

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So what I'll actually do now is I'll open up my terminal and I will, first of all, run npm install

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to install all these packages again.

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Now, of course, you don't need to do that.

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If you already have, you're up and running project.

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But I need to do that because I literally took that finished project snapshot you find attached at the

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end of the authentication module, and I'm now going to install all the dependencies there.

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So did you really see how to pick up from that finished snapshot and get everything to work with respect

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navigation version five.

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So let's wait for this installation here to finish.

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And with that finished, the the first thing I'll actually do is I will run Expo upgrade to install

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the latest version of the Expo toolkit and make sure that Expo also updates everything in the way it

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needs to be updated so that it installs all packages it needs and so on.

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So I will now hit yes.

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Here and also yes.

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Here on this question.

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And now here it will update the installation on the iOS simulator, the installation of the Expo preview

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tool, and therefore you should make sure that you have a simulator up and running.

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And I do have that on a separate screen.

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So I will hit yes.

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Here as well.

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And once it is done with that, it also asks me the same question for Android and for that I also have

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a running Android emulator where it now reinstalled the export application.

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And it should succeed with this as well.

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Let's wait for that to finish.

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And that looks good, and now it just installs a couple of dependencies, again, let's wait for dad

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to finish, and with this we can run and start to bring up this XPO process.

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And once does this started, just as you saw the course, we can press a to launch the Android app and

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I to launch this app or do that in that extra tab in the browser, which opened up on another screen

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here for me.

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And once this is done, it now starts building and I'm getting an error here regarding react native

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screens to quickly fix that.

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I will just quit this again and will run, expl, install, react, dash native dash screens.

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And thereafter, once this is finished, restart, this process will then start and thereafter again,

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press aide who launched the app on Android and Press Eye to launch it on ISIS.

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Now, let's wait for this to finish so that it builds this JavaScript bundle and launches the app on

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both simulator's and therefore I see both apps up and running.

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Now, in order to log in, I also need to adjust my firebase data simply because I created a new firebase

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project.

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If you didn't do that, which you probably didn't, you, of course, don't need to do anything here,

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I will quickly update those credentials, those links and so on in my actions with my proper firebase

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data, which I'm using now.

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And with that done.

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I can try and log in here, I did create one user.

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And that works.

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Now, I get an error here because I got no product at the moment, that's no problem.

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But what we see is that we generally can navigate around in this application and that this app works

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the way it worked when we finished a course.

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Now, of course it does, because right now we're not using react navigation in the latest version.

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So let's make sure that we do that.