Errors installing Composer on macOS (JIT compilation failed)

Question

When I run composer --version in the macOS terminal, I get the following errors.

PHP Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 755
Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
on line 755 PHP Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 759
Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
on line 759 PHP Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 654
Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
on line 654 PHP Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 1091
Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
on line 1091 PHP Warning: preg_replace(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php on line 36
Warning: preg_replace(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php
on line 36
  [ErrorException]                                          
  preg_match_all(): JIT compilation failed: no more memory

Hello there. We will need more information to really help you. First, it isn't clear that you are having a software development problem, which is really the purpose of this site (Stack Overflow, or "SO"). I'll assume your question fits since you're probably attempting PHP development/building with Composer. Next, we need to know how you're trying to install Composer, which version of PHP you have installed, etc. Finally, this post might help you: https://stackoverflow.com/questions/51656914/how-to-install-composer-on-macos — Greg T., Dec 09 '18 at 08:57
I don't have a fix for you but I encountered a similar problem. Downgrade to php 7.2. — Joe Niland, Dec 09 '18 at 11:06

score 144 · Answer 1 · edited Jul 06 '20 at 15:14

144

This is a known PHP 7.3 bug, which has already been fixed.

As a temporary workaround, edit your php.ini file (in my case: vi /usr/local/etc/php/7.3/php.ini), disable PHP PCRE JIT compilation by changing:

;pcre.jit=1

to

pcre.jit=0

edited Jul 06 '20 at 15:14

NikiC

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answered Dec 10 '18 at 16:13

Karl Hill

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this will disable it completely. to just disable it for composer, see bishop's answer https://stackoverflow.com/a/53772696/4233593 – Jeff Puckett Mar 30 '19 at 19:55
my command line interface gives error that it does not have right to write. – Manghud Sep 16 '20 at 21:14

fab120 · Answer 2 · 2018-12-10T13:45:51.747

35

I solved this by disabling the PCRE jit compilation.

I suppose you installed php 7.3 through homebrew.

If so, create a zzz-myphp.ini in /usr/local/etc/php/7.3/conf.d with the following content:

; My php.ini settings
; Fix for PCRE "JIT compilation failed" error
[Pcre]
pcre.jit=0

edited Dec 10 '18 at 13:45

answered Dec 10 '18 at 10:21

fab120

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I did this on the loaded php.ini but PCRE JIT is still enabled. – Petruza Jul 16 '19 at 16:08

score 14 · Answer 3 · answered Dec 14 '18 at 02:20

Other answers suggest disabling PCRE JIT via a configuration file. That works, but caveat: this disables PCRE JIT for all engine invocations that use those INI files. You therefore won't be getting JIT improvement for a potentially wider swath of functionality, which may not be desired.

You can disable JIT for composer only via:

php -d pcre.jit=0 composer.phar ...

score 3 · Answer 4 · answered Apr 12 '19 at 11:44

3

In PHP 7.1.24 there is no 'pcre.jit' in php.ini file so you have to set memory_limit:128M (if you increase this).

answered Apr 12 '19 at 11:44

Ashish Sharma

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score 3 · Answer 5 · answered Sep 23 '19 at 13:44

3

It work for me by follow steps:

Open you Terminal and run php --ini
Open file php.ini in the path "Loaded Configuration File: /usr/local/php5/lib/php.ini" https://prnt.sc/p9tspy
Find pcre.jit and change ;pcre.jit=1 to pcre.jit=0

answered Sep 23 '19 at 13:44

Đặng Quốc Anh

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This was a very clear step by step explanation. Thank you. – Deepak Daniel Apr 05 '20 at 11:35
But in my file pcre.jit not available what should i need to do ? – Sandip Jha Jan 13 '21 at 13:43

score 0 · Answer 6 · answered Dec 12 '18 at 17:38

0

Thanks for the answers.. I solved it by command composer.phar and then export path. Example:

$composer.phar
$export PATH=/usr/local/php5/bin:$PATH
$composer.phar --version

answered Dec 12 '18 at 17:38

sheraz m

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Is that explicitly telling composer to simply run on PHP 5.x? – Umbrella Dec 12 '18 at 18:19
@Umbrella Exactly. Its setting up a path for execution of composer. – sheraz m Dec 13 '18 at 01:27
Downgrading PHP also works, but is quite extreme. Perhaps invoking with `-d pcre.jit=0` or adding same to a configuration file would allow you to continue using version 7 without the trouble. – bishop Dec 14 '18 at 02:21
What happens when something you try to install via composer has php 7 as a requirement? Not to mention the fact that you're keeping a PHP version on your computer that is officially End-of-life. – Ben Hillier Jan 09 '19 at 14:32

score -1 · Answer 7 · answered Aug 17 '19 at 21:37

I got the same error. I installed MAMP 5.4 on my Mac OS 10.11.6 using PHP 7.3.7 and installed Composer. It seemed to work but as soon as I attempted to install Yii2 or even check the version, it gave me the error...

$composer.phar --version
Fatal error: Uncaught ErrorException: preg_match_all(): JIT compilation failed: no more memory in phar:///Users/kristin/Sites/htdocs/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php:137

Increasing the memory_limit in php.ini from 128M to anything did NOT solve the issue and pcre.jit=1 was commented out so turning it off didn't do anything either.

Here is what worked:

I simply changed the export path to the previous version's directory (without actually downgrading in MAMP's preferences) and it worked!

$export PATH=/Applications/MAMP/bin/php/php7.2.20/bin:$PATH
$composer.phar --version
Composer version 1.9.0 2019-08-02 20:55:32

If anyone can explain why this worked, I'd appreciate knowing. Cheers.

score -1 · Answer 8 · edited Jul 06 '20 at 06:32

-1

This works for me -

  alias composer='php -d pcre.jit=0 /usr/local/bin/composer'

It's does not require and older version of PHP and is specific to composer. To persist across shell closure edit and add to ~/.bash_profile.

edited Jul 06 '20 at 06:32

DanielM

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answered Jul 05 '20 at 23:47

ijf8090

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Errors installing Composer on macOS (JIT compilation failed)

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