Composer\InstalledVersions not found

[martinssipenko]

I'm trying to use scoper on my project where I use Composer\InstalledVersions class. After running scoper the class gets prefixed with _PhpScoper2d7049acc8b0 and becomes _PhpScoper2d7049acc8b0\Composer\InstalledVersions. After running scoper I run composer dump --classmap-authoritative from within build/ directory.

Now when I try to run my application I get an error:
Uncaught Error: Class '_PhpScoperb8eeadf8a1cd\Composer\InstalledVersions'

I've found that reference to this class is in vendor/composer/autoload_classmap.php file, but it's referencing a non-prefixed version:

'Composer\\InstalledVersions' => $vendorDir . '/composer/InstalledVersions.php',

Is there anything I'm doing wrong?

[theofidry]

Hi, I'm not certain:

• which version of PHP-Scoper is it?
• what OS is it?
• what PHP version is it?
• are you loading the vendor/scoper-autoload.php file instead of the composer one?

[martinssipenko]

@theofidry

• PHP Scoper version 0.14.1@023b231
• MacOS
• PHP 7.4.16
• I'm loading vendor/autoload.php in my application
• I'm using Composer version 2.1.5

[theofidry]

I'm loading vendor/autoload.php in my application

This is the issue: for the scoped code you need to autoload the PHPScoper autoloader. It doesnt look clear from the doc in the "build without Box" section so it might be worth adding a note about it

[martinssipenko]

Just to be clear, I've actually tried using Box and encountered the same issue. I tried to pinpoint the issue by using Scoper without Box, which produced the same results.

[theofidry]

that is weird, but to keep in mind Box does more stuff so instead of trying to replicate what it does i would suggest to break down the issue as follows:

• see if it's a box issue or a PHP-Scoper issue: is the built PHAR working when building with box without PHP-Scoper?
• is the scoped app working fine outside the PHAR? (you can try --debug when building with Box it will dump the PHAR content in a temporary directory so you can execute the app outside the PHAR)

[martinssipenko]

I've narrowed it down a bit, turns out that when I run the application that was produced using --debug option, one that's located in .box_dump/ directory, the composer uses class map from autoload_static.php file, but similar to what I said before the value there is without the prefix:

'Composer\\InstalledVersions' => __DIR__ . '/..' . '/composer/InstalledVersions.php',

If I use Box without scoper it works as expected.

[theofidry]

do you have a reproducer? I think there is more to it because both Box and PHP-Scoper build themselves in a similar fashion

[martinssipenko]

Wdym? A repo where this can be observed?

[theofidry]

Yes, something I could easily check out locally ideally

[martinssipenko]

here is a reproducer https://github.com/martinssipenko/php-scoper-issue
clone it, composer install and try running box
both phar and .box_dump/ have same issue

[theofidry]

thanks! will try to check it out during the week

[weirdan]

This now affects Psalm as well: vimeo/psalm#7329. @theofidry, did you have any luck looking into this? Even though we're using an outdated box version in Psalm, upgrading didn't change a thing as far as this issue is concerned.

[theofidry]

This should be fixed with 0.16. If that's not the case please open a new issue