I am trying to upgrade composer to Composer2 (from Composer1).
richb201@richb201-XPS-13-9370:/opt/docker-substantiator2/app/vendor/sendpulse-rest-api-php-master/src$ composer selfupdate
Updating to version 2.0.13 (stable channel).
Downloading (100%)
[ErrorException]
rename(/home/richb201/.cache/composer/composer-temp.phar,/usr/local/bin/composer): Permission denied
What am I doing wrong?
