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How to Download and Setup Xcode 8 for iOS Development

Step 0: Check your mac OS Version

• MacBook Air, OS X El Capitan (10.11.6), Xcode Posted on Nov 26, 2018 9:57 AM Reply I have this question too (881) I have this question too Me too (881) Me too.
• XCode 8 El Capitan Mac OSX 10.11.6 Part #1.
• I am searching for a proper IDE for iOS developement but MAC OS X version is 10.11.6 & because of this I am unable to install XCode. It says 'I should have MAC OS X 10.12+'.

Xcode 7.3.1: 7D1014: macOS 10.11. (OracleJDK) for each image in the table below. While Mac jobs can test against multiple JDK versions using the jdk key.

We will be using Xcode 8 to program iOS apps and run them in Xcode’s built in iOS simulator.

Xcode is an Integrated Development Environment (IDE) developed by Apple and the vast majority of iOS developers rely on it for making iPhone or iPad applications. Xcode 8 has a minimum system requirement of OS X 10.11.5 or above (El Capitan) or ideally you should be running macOS Sierra (10.12).

If you are still running an earlier OS such as Mavericks, Yosemite etc, you will need to update your OS. Have a look on Apple’s website for instructions on how to do so.

To check your current OS version, go to the apple icon at the top left of your Mac 🍎 → About This Mac

You should see a screen similar to this:

Check the OS is either El Capitan 10.11.5or above or macOS Sierra 10.12. If your version is lower than this, head over to the mac App Store and you can upgrade your operating system to macOS Sierra for free.

Step 1: Open the App Store

Once you’re sure you are running the correct version of the mac operating system, you can get started with downloading Xcode 8 through the Mac App Store. Open the App Store app on your Mac. By default the App Store is in the Dock. You can also find it in your Launchpad.

Step 2: Search for XCode

In the search field in the top-right corner, type Xcode and press the Return key.

Step 3: Install Xcode

Xcode is a free application developed by Apple, so just click the “Get” button

and start the installation process. Xcode is several gigabytes in size so downloading it could take a while. Xcode is downloaded into your /Applications directory.

Step 4: Launch Xcode

Launch Xcode. Do you see the Welcome to Xcode window and the version is 8.0 or above? If yes, great. We’re all done!

Step 5: Register as an iOS Developer (optional)

Once you’re ready to submit apps to the App Store, you will need to enrol for the iOS Developer Program.

You can obtain a developer license from Apple and it costs $99 per year. Unless you are ready to release your app to the App Store and start clawing back that fee, it is not recommended to start paying Apple right away. But when you are ready to start the registration process, go to the iOS Developer Program Center and enrolment should only take a few minutes.

Troubleshooting

These are some of the ways installation can go wrong. If you’re having problems, check if one of these fixes help to solve your problem.

• You don’t have enough space on your Mac hard-drive. Xcode is a large piece of software, make sure you have at least 10GB free on your hard-drive before attempting installation.

• You have an earlier version of OSX installed. Xcode 8 can only be installed on a Mac running El Capitan (OS X 10.11.5 or macOS Sierra). Go back to Step 0 and check to make sure you have upgraded to macOS Sierra as your operating system before you attempt to install Xcode. You can update your OS through the Mac App Store for free or check out Apple’s website for more details. www.apple.com/uk/osx/whats-new/

• Please do not install a beta version of Xcode as it will impact installation of your apps on to a physical device. Follow our instructions above and you should have no problems.

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After installing the GNU compilers, you may want to check out the HOWTO for installing Open MPI on Mac OS X.

Background

One of the nice things about Mac OS X is that you have a polished user interface atop a Unix operating system. This means that using command line utilities such as compilers is straightforward, making coding on your Mac easy. If you have a multi-core Mac (most should by now) and would like to run codes that use MPI to distribute processing across multiple processor cores, you should also check out the HOWTO for installing Open MPI on Mac OS X. Note that you'll need to follow the instructions on this page prior to installing Open MPI if you don't already have some set of compilers installed.

Requirements

To install the GNU compilers as described in this HOWTO, you'll need the following:

• A Mac running 10.11 (El Capitan)
  • If you are using Mac OS X 10.6 - 10.10, check out the instructions for older versions of Mac OS X
• An Apple App Store account
• Internet access

Xcode Mac 10.13

Video instructions for Mac OS 10.11 (El Capitan) with Xcode 7

Xcode Mac Download

Rough video transcript:

Hello, and welcome to this screencast on how to install the GNU C, C++ and Fortran compilers for Mac OS 10.11 (El Capitan). In this video, I will show you how to install the compilers as well as Apple’s Xcode software, which is required for the compiler installation. For this video, I am assuming you are using a Mac running Mac OS 10.11, also known as El Capitan, that you have an Apple App Store account and that you have internet access. I am also assuming you have administrator access on your Mac, allowing you to install software. If you’re running an older version of Mac OS X, the installation procedure will be similar, but you can check out the link at the end of this video for the installation procedure on older versions of Mac OS X back to 10.6.

Step 1: We’ll begin by installing the current version of Apple’s Xcode software, Xcode 7. To install Xcode, start by opening the App Store app by clicking on the Apple logo on the top left of the menu bar and then selecting App Store… Once the App Store app opens, enter 'Xcode' into the search and press Enter. You can now click install to install Xcode. You may be prompted to enter your Apple ID and password if you’ve not previously installed applications via the App Store. Xcode is a pretty big download, so depending on the speed of your internet connection it may take some time to download and install. I’ll be back once the install is complete.

Step 2: Xcode has been downloaded and installed, and now we can move on to a critical second step for the Xcode install, installing the command line tools. To do this, we can use Spotlight to open the Terminal app. If you’re installing compilers, I am going to assume you’re at least somewhat familiar with using a terminal emulator. If not, you should still be able to do the install by following these instructions carefully. Once Terminal has opened, type in xcode-select --install. This will install the command line tools for Xcode, and you will be asked to perform the install using the typical application installation process. This may include asking you for your password.

Step 3: Now that Xcode is fully installed, we can move on to downloading the GNU compilers from the High-Performance Computing for Mac OS X website. The easiest way to get there is to open a web browser, Safari in this case. And type in 'High-performance computing Mac OS X' in the Google search. It should be the top hit. On that page, we’ll grab the latest STABLE version of the GCC compiler package and click the link to download.

Step 4: After the compilers have downloaded, we can return to the Terminal and navigate to the Downloads directory. We’ll install the compilers now using the `sudo` command, and before we do so, I’m going to give you a little warning. Using the sudo command can do major damage to your computer if you aren’t careful, so please type the following exactly as shown to do the install: sudo tar -xvf gcc-5.3-bin.tar -C /. If your downloaded package ends in .tar.gz, you’ll need to add z to the list of flags after the tar command. This should take just a moment and will install the compilers in /usr/local.

Step 5: Now the compilers are installed, and if you’re running Mac OS 10.11, you should be able to test the installation by typing gcc -v. It should show version 5.3. You can try the same with the Fortran compiler by typing gfortran -v. If they return the compiler versions as expected, you’re all set. Enjoy.
- If your compilers are not installed, you may need to add the installation location to the PATH environment variable, which tells the computer where to look for command line programs.
- In that case, the easiest thing to do is go to the installation HOWTO at the link at the end of this video and check out the last section of the instructions for the installation for Mac OS 10.9 or 10.10. There are some additional instructions that may help resolve your issues. If you’re still having trouble, double check you’ve followed the instructions exactly as given in the video and feel free to add a comment if you still need some help.
- OK, so that’s it. Thank you for watching. If you have any comments, please leave them below. In case you’re interested, here’s another link to a video on how to install the Open MPI software for running multi-core applications on your Mac using MPI, the message-passing interface. Good luck!

Xcode Download

Instructions for older versions of Mac OS X (10.6 - 10.10)

Instructions for installing the GNU compilers for older versions of Mac OS X (10.6 - 10.10) have been moved and are available on another page.

Tips & Warnings

I mention all but the last of these tips and warnings in the text above, but it doesn't hurt to list them a second time...

• Beware that using sudo can do major damage to your computer if you aren't careful.
• Note that after installing Xcode, you also need to perform a critical additional step.
  • Launch Xcode and install any available updates. Quit Xcode.
    
  • Launch Terminal.app (in /Applications/Utilities, hopefully you know that)

  • Install the Command Line Tools for OS X by typing
    

    This will open a dialog box to install the Command Line Tools for Xcode package. Install following the standard procedure.

• If the correct version of gcc is not being found at the command line after installation, it is possible that you're using a terminal emulator that reads the .bashrc file rather than the .bash_profile file. To confirm, do the following:

  • Open a new terminal window using your terminal emulator of choice. This will reread the either the .bash_profile file or the .bashrc. If the new gcc version is not returned when typing
    

    then your terminal emulator may be reading the .bashrc file.

  • You can fix this one of two ways

    • Create a symbolic link called .bashrc that points to .bash_profile by typing

    • Modify the order of directories that are searched for commands by typing

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