PHP install fails because Composer is unavailable

Error recorded 23 times in PanelAlpha Engine deploys on Php, Sveltekit, Vite. The deploy log below is the recorded failure output.

Seen23 times · 3 variants
WherePhp, Sveltekit, Vite

Why it happens

The repository was detected as a PHP app without Composer, but its pnpm install runs PHP package postinstall scripts. Those scripts invoke composer install, and Composer is not installed or not available on PATH in the build environment. The deployment then stops during dependency installation.

What the log looks like

Deploy log
packages/php/blueprint postinstall$ XDEBUG_MODE=off composer install --quietpackages/php/email-editor postinstall$ sh vendor-prefixed/setup.sh && XDEBUG_MODE=off composer install --quietpackages/php/blueprint postinstall: sh: 1: composer: not found…

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Requires Ubuntu 24.04 or 26.04 · 2 GB RAM · 1 CPURead the documentation