proc_open fork failed – Cannot allocate memory laravel in ubuntu

Now in this article, we will install new laravel project in composer to define command then have a error to display in composer proc_open(): fork failed – Cannot allocate memory size.Here we know the solution of proc_open fork failed in laravel ubuntu.

Now in this article, we will find the best solution for issue:

The following exception is caused by a lack of memory or swap, or not having swap configured
Check https://getcomposer.org/doc/articles/troubleshooting.md#proc-open-fork-failed-errors for details                                                    
[ErrorException]                                   
proc_open(): fork failed - Cannot allocate memory

At first check our swap with this command:

Run Following Commands:

free -m

sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024

sudo /sbin/mkswap /var/swap.1

sudo /sbin/swapon /var/swap.1

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