To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
That may be the main problem, using a beta version of xcode. But you could also try installing the command-line tools to solve this: xcode-select -install and then sudo xcodebuild -license accept after that succeeds. Gcc -v should show you have something like Apple clang version 11.0.0 (clang-1100.0.33.8). Basically, if you created a new user account in macOS Catalina, zsh (Z shell) will be your default shell. Try typing xcode-select -install to update the Command Line Tools and then restart.
The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it will not accept installation of macOS Catalina or earlier.
- Run xcode-select -v to check what version you're running (mine is currently 2384 on macOS 11.1). Run #1409 (comment) to see if it helps to install the latest CLI Tools. Optional: Go to the App Store and install the latest XCode (12.3) if you can't get Ruby to compile. It should work with only the latest CLI tools though.
- Learn about the key features available in Xcode, the integrated development environment for building apps for Mac, iPhone, iPad, Apple Watch, and Apple TV.
- After installing Catalina, Xcode refuses to install. It downloads for a long time (slow downloads from Apple) and then refuses to install with no explanation. 'Unable to Download App' “Xcode” could not be installed. Please try again later.
If a macOS can't be used on your Mac, the App Store or installer will let you know. For example, it might say that it's not compatible with this device or is too old to be opened on this version of macOS. To confirm compatibility before downloading, check the minimum hardware requirements:
- macOS Catalina 10.15 hardware requirements
- macOS Mojave 10.14 hardware requirements
- macOS High Sierra 10.13 hardware requirements
- macOS Sierra 10.12 hardware requirements
- OS X El Capitan 10.11 hardware requirements
- OS X Yosemite 10.10 hardware requirements
Download macOS using Safari on your Mac
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard
Mac users with macOS Mojave and macOS Catalina, and new operating systems in place can now install Command Line Tools from the Xcode IDE without needing to install the entire Xcode package, or opening an Apple developers account.
Did you know: Using Xcode app leaves behind a lot of junk files a.k.a. 'development junk.' These files are usually hidden from view but you can delete them with a Mac maintenance app CleanMyMac X.
In this article, we cover how you can install this optional and highly useful Command Line Tools package.
X code 11. Credit: developerinsider
What is the Xcode Command Line Tools package?
For Mac power users — we wouldn't recommend downloading this unless you are comfortable with Terminal — the Xcode Command Line Tools package gives you a complete Unix toolkit accessible through Terminal. No developer account needed and you don't need to download the entire — and quite large Xcode package of executables.
Catalina Install Xcode
Within the Xcode Command Line toolkit, Mac users gain access to numerous useful tools, utilities, and compilers, including make, GCC, clang, perl, svn, git, size, strip, strings, libtool, cpp, and many others. All of these commands are a default part of Linux systems and programs.
We recommend following these steps for those with the following operating systems running on a Mac: macOS 10.13 High Sierra, macOS 10.14 Mojave, and macOS 10.15 Catalia onward. It isn't always possible to download these Xcode Command Line Tools, following these steps, on Mac’s running older operating systems. Other ways to install command tools and gcc (without needing Xcode) is available through the Apple Developer website.
Here is how you install Xcode Command Line Tools.
How to install Xcode Command Line Tools?
- Go to Terminal in /Applications/Utilities/.
- Input the following command string in Terminal:
xcode-select —install - In the same way when you are downloading new software and apps, a popup update window will appear asking you: “The xcode-select command requires the command line developer tools. Would you like to install the tools now?”
- Select confirm by clicking Install.
- Wait for the Xcode Command Line Tools package to install. It is around 130 MB and usually installs fairly quickly; although it depends on your connection.
- Once everything is installed, the installer goes away and you should be able to any of the new commands that you’ve now got access to. Enjoy using your new Unix command line tools!
Alternative way to install command line tools
If the Terminal combination didn't work, open the Finder > Go to Folder...menu.
Paste in the following path:/System/Library/CoreServices
In that location, find the app called Install Command Line Developer Tools.app — it will have a blue globe icon.
Click this app and then try the Terminal method explained above.
With this new download, you should have access to 61 Unix command line tools. For example, one of the advantages of having these tools is you can install new apps and software directly from the source code instead of needing to go through the package manager and usual download route.
To access or view everything you've now got, go to the following directory:
/Library/Developer/CommandLineTools/
Please note, this is the root /Library of your macOS/OS X, not the ~/Library directory.
All of these tools can also be found in: /Library/Developer/CommandLineTools/usr/bin/
These tools like small executable apps (which they are):
What happens if I encounter problems downloading these?
If you get an error message that says “Can’t install the software because it is not currently available from the Software Update server”, it means you've already got the Xcode package on your Mac. Mac OS X 10.9 onward, Xcode was already installed, which is why you aren't able to download these tools. However, what you can do is uninstall the entire Xcode app if you'd prefer to only access these tools and not a whole load of software that isn’t going to be of much use.
Watch out for Xcode junk
Catalina Xcode Install Command Line Tools
The Xcode junk is one of those types of clutter that is keeps accumulating in remote places on your Mac. It could take up a few gigs of your space. The only app that seems to address this problem is CleanMyMac X by MacPaw. It’s loved by many Mac developers because it collects those specific types of development junk, like Xcode or outdated libraries.
Once you launch the app, click on System Junk > Scan. Then, click “Review Details”
CleanMyMac X is a powerful Mac performance improvement app. It makes your Mac as good as new. Let it scan your system and clear out any unwanted Xcode, development and system junk that is taking up too much space and cluttering up your Mac. In a few clicks, your Mac could be running smoother, quicker and more efficiently.