John Davidson

Message:

I recently upgraded a Laravel 7 application to 9 and then upgraded php to version 8.1
The application also uses Laravel Nova and it uses the Currency field extensively. It also uses Symfony\Component\Intl\Currencies; quite extensively.

On my development machine (macOS) the application works fine.

The application is deployed as a serverless application via Laravel Vapor. When I try to run it, I get the following error

Symfony\Component\Intl\Exception\MissingResourceException: Couldn't read the indices [Names][][0] for the locale "en" in "/var/task/vendor/symfony/intl/Resources/data/currencies". The indices also couldn't be found for the fallback locale(s) "root".

Location

vendor/symfony/intl/Data/Bundle/Reader/BundleEntryReader.php:175 - Symfony\Component\Intl\Data\Bundle\Reader\BundleEntryReader::readEntry 

Following several hours of research, I have tried adding the following to composer

    "ext-intl": "*",

    "symfony/intl": "^6.0"

This does not appear to solve the problem and I'm a bit stumped. Does anyone have any ideas, is there something I should be installing globally for this to work correctly? Any advice would be most welcome.

UPDATE
I though to mention, I'm using this docker image: laravelphp/vapor:php81

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My Answer:
en_US. This usually indicates that the ICU data is missing or corrupt. Make sure to install the symfony/intl package and the intl PHP extension.