Stack Overflow
Stack Overflow

Questions tagged [macos]

macOS (formerly known as OS X or Mac OS X) is the desktop operating system from Apple, found on Macintosh computers. Use this tag only if your question relates to using macOS APIs or macOS-specific behavior, not because you happen to run your code on macOS. Questions relating to using or troubleshooting macOS are off-topic and belong in the Ask Different community instead.

macOS (formerly known as OS X until 2016 and Mac OS X until 2012) is the desktop operating system from Apple Inc., found on Macintosh computers.

Use this tag for questions about writing and debugging programs on macOS. Questions relating to using or troubleshooting macOS are off-topic (use apple.stackexchange.com instead).

macOS() consists of a Mach/BSD-based kernel, operating system interfaces primarily based on FreeBSD (), and additional frameworks (written in C (), C++ (), Objective-C () and Swift () providing user interface and application-level services.

It was the successor to Mac OS 9. macOS is based upon the NeXTSTEP and OpenStep operating systems developed in the 1980s and 1990s by NeXT Inc., which Apple purchased in 1996.

Versions

  • Current macOS Big Sur
  • macOS Catalina 10.15.1
  • macOS Mojave 10.14.1
  • macOS High Sierra (10.13)
  • macOS Sierra (10.12)
  • OS X El Capitan (10.11)
  • OS X Yosemite (10.10)
  • OS X Mavericks (10.9)
  • OS X Mountain Lion (10.8)
  • OS X Lion (10.7)
  • OS X Snow Leopard (10.6)
  • OS X Leopard (10.5)
  • OS X Tiger (10.4)
  • OS X Panther (10.3)
  • OS X Jaguar (10.2)
  • OS X Cheetah (10.1)
  • OS X Puma (10.0)

More information:

116456 questions
316
votes
16 answers

How do I close an open port from the terminal on the Mac?

I opened port #5955 from a java class to comunicate from a client. How do i close this port after I am done? and also which command can show me if port open or closed?
user1667108
  • 3,169
  • 3
  • 13
  • 3
315
votes
31 answers

After installing Homebrew I get `zsh: command not found: brew`

➜ ~ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" -e:77: warning: Insecure world writable dir /usr/local/bin in PATH, mode 040677 It appears Homebrew is already installed. If your intent is to…
Elad Benda2
  • 13,852
  • 29
  • 82
  • 157
314
votes
13 answers

Where is PHP.ini in Mac OS X Lion?

I wanted to run some PHP right on my Mac, uncommented httpd.conf, activated web sharing, installed MySQL etc. I can't seem to find my PHP files, most importantly, PHP.ini. On my old machine it was located in /usr/local/php5/lib But php5 directory…
Orun
  • 4,383
  • 3
  • 26
  • 44
312
votes
15 answers

socket.error: [Errno 48] Address already in use

I'm trying to set up a server with python from mac terminal. I navigate to folder location an use: python -m SimpleHTTPServer But this gives me error: socket.error: [Errno 48] Address already in use I had previously open a connection using the…
irm
  • 4,073
  • 6
  • 28
  • 32
309
votes
7 answers

Class JavaLaunchHelper is implemented in two places

Today I upgraded my Intellij Idea on macOS Sierra, and now, when I run apps in console I have this error: objc[3648]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/bin/java…
Ess
  • 3,350
  • 4
  • 12
  • 20
309
votes
27 answers

OS X Framework Library not loaded: 'Image not found'

I am trying to create a basic OS X Framework, right now I just have a test framework created: TestMacFramework.framework and I'm trying to import it into a brand new OS X Application project. I have built the .framework file and imported it into the…
Sammio2
  • 7,422
  • 7
  • 34
  • 49
307
votes
29 answers

psql: could not connect to server: No such file or directory (Mac OS X)

Upon restarting my Mac I got the dreaded Postgres error: psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"? The reason…
FireDragon
  • 9,325
  • 4
  • 27
  • 34
306
votes
17 answers

How to set JAVA_HOME environment variable on Mac OS X 10.9?

I just purchased a brand new MacBook Pro. This is my first MAC ever and I'm still trying to get the hang of navigating my way around. Anyway, I'm also new to Java and I've been practicing on my Windows PC before it permanently died. Now that I'm…
islander_zero
  • 3,342
  • 3
  • 12
  • 17
303
votes
12 answers

git mv and only change case of directory

While I found similar question I didn't find an answer to my problem When I try to rename the directory from FOO to foo via git mv FOO foo I get fatal: renaming 'FOO' failed: Invalid argument OK. So I try git mv FOO foo2 && git mv foo2 foo But…
oschrenk
  • 4,080
  • 4
  • 22
  • 25
303
votes
14 answers

Removing Java 8 JDK from Mac

So I installed the beta of JDK 8 a while ago to look at some of the examples. I thought for sure by now, it's easy to change between versions. Doing some Play development with IntelliJ. For some reason, IntelliJ is compiling with 8 even though: I…
Rob
  • 11,446
  • 7
  • 39
  • 57
300
votes
25 answers

Failed to build gem native extension (installing Compass)

When I attempt to install the latest version of compass (https://rubygems.org/gems/compass/versions/1.0.0.alpha.17), I get the following error. ERROR: Error installing compass: ERROR: Failed to build gem native extension. ERROR: Error installing…
cusejuice
  • 10,285
  • 26
  • 90
  • 145
297
votes
9 answers

How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

I have install Mountain Lion (Mac OS X 10.8) and now gcc doesn't seem to be available anymore. I've also installed Xcode 4.4 so there is no more /Developer directory. I need gcc both for mac ports and for ruby gems (that have native…
Athir Nuaimi
  • 3,214
  • 2
  • 14
  • 17
295
votes
10 answers

Finding Android SDK on Mac and adding to PATH

I have installed Android Studio on my MacBook Air (OS Version 10.11 El Capitan) and have successfully written a small "hello, world" app and installed on device (Nexus 7) and ran on AVD. All I want to do now is be able to build the app and install…
Dave
  • 8,095
  • 14
  • 56
  • 99
295
votes
4 answers

What are the differences between .so and .dylib on macOS?

.dylib is the dynamic library extension on macOS, but it's never been clear to me when I can't / shouldn't use a traditional unix .so shared object. Some of the questions I have: At a conceptual level, what are the main differences between .so and…
Trent Davies
  • 3,309
  • 3
  • 17
  • 7
294
votes
9 answers

I change the capitalization of a directory and Git doesn't seem to pick up on it

I'm developing a project on OS X Lion that is under Git version control. I had these lowercase directories and then later capitalized them (e.g. emailaddresses => EmailAddresses), but Git doesn't seem to recognize the change. It still thinks the…
dan
  • 43,914
  • 47
  • 153
  • 254
1 2 3
…
99 100