Magento 2.4.4 - Static content deploy - Deprecated Error - null value

[mkuzPL]

I've made fresh install of Magento 2.4.4
PHP version is 8.1.4

I've created two child themes (one of luma & one of blank)
I've installed PL language pack using command:
composer require mageplaza/magento-2-polish-language-pack:dev-master mageplaza/module-smtp

Next step (after installing language pack) should be:
php bin/magento setup:static-content:deploy pl_PL -f

Following command causes an error:
Error happened during deploy process: Deprecated Functionality: pathinfo(): Passing null to parameter #1 ($path) of type string is deprecated in /workspaces/magento-demo/vendor/magento/framework/View/Asset/PreProcessor/FileNameResolver.php on line 44

Line 44 of FileNameResolver.php looks like this:

I've found somethinf like this: [PHP 8.1: Passing null to non-nullable internal function parameters is deprecated]

How can I fix this error?

[m2-assistant]

Hi @mkuzPL. Thank you for your report.
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[themew]

After composer require mageplaza/magento-2-polish-language-pack:dev-master mageplaza/module-smtp

Enter php bin/magento setup:upgrade

Then php bin/magento setup:static-content:deploy (-f if required)

Finally php bin/magento cache:clean

I also noticed you're also installing the mageplaza/module-smtp which is a great addon, however I don't think it works in php 8.1 yet.

[Hanhan1989]

I had the same problem and I don't know why. I think this is a bug of Magento

[Hanhan1989]

I found the origin of the problem. The problem was we should put the logo.png image file in our theme: app/design/frontend/[our_vendor]/[theme]/web/images/logo.png

[FadedOut]

@Hanhan1989 Hey, could you explain a bit more of what you mean by this? Where is the logo.png prior to you moving it? I'm running into the same deployment issue with a theme I'm using - if I remove the theme deployment works.

I'm wondering what needs to be changed with the theme to make it work? Or as you point out, moving the logo.png file?

[Hanhan1989]

@FadedOut This problem appears to me due to the lack of the logo.png file in my custom theme.

├── [your theme]
       ├── registration.php
       ├── theme.xml
       └── web
                └── images
                 └── logo.png

Check if you are in the same situation.

[FadedOut]

@Hanhan1989 Thank you for the response :)

But hmm, well my theme is kind of an umbrella theme - it houses many sub-styles. The sub styles had the web>images folder but had an SVG in it. I tried dropping in a PNG to a substyle that I would target in the command. This still turned up the same error.

So I trial & error'd some more, thinking maybe if I added my own "web>images" folder because it did not exist (above the sub-styles - where registration.php is). I did that and added my logo.png file. I now receive the following error when running the deployment command (and it seems at the end of executing setup:upgrade as well) :

Error happened during deploy process: Warning: Trying to access array offset on value of type null in /home/cmp/public_html/vendor/magento/framework/View/Design/Theme/ThemeList.php on line 254

This line is like this:
'preview_image' => $media['preview_image'] ? $media['preview_image'] : null,

But I don't know what that could mean now...

Odd, very odd. I'm asking my theme dev to check it out but they aren't really sure either - thinking it's a Magento issue and I'm not sure it is. Ugh downtime is no good :(

[mkuzPL]

I found the origin of the problem. The problem was we should put the logo.png image file in our theme:
app/design/frontend/[our_vendor]/[theme]/web/images/logo.png

Thank You!
That worked for me, the problem is gone :)

[dragonfly4]

I found the origin of the problem. The problem was we should put the logo.png image file in our theme: app/design/frontend/[our_vendor]/[theme]/web/images/logo.png

I can confirm this solves the problem. Child themes need to have a logo.png file

[0m3r]

I have the same compilation error with the 'empty' (virtual) theme

https://github.com/magento/magento2/blob/2.4.4/app/code/Magento/Deploy/Collector/Collector.php#L96

$file->setDeployedFileName($this->fileNameResolver->resolve($file->getFileName()));

$file->getFileName() is null

https://github.com/magento/magento2/blob/2.4.4/app/code/Magento/Deploy/Source/Themes.php#L52-L63

foreach ($this->filesUtil->getStaticPreProcessingFiles() as $info) {
            list($area, $theme, $locale, $module, $fileName, $fullPath) = $info;
            if (!empty($theme)) {
                $locale = $locale ?: null;
                $params = [
                    'area' => $area,
                    'theme' => $theme,
                    'locale' => $locale,
                    'module' => $module,
                    'fileName' => $fileName,
                    'sourcePath' => $fullPath
                ];
                $files[] = $this->packageFileFactory->create($params);
            }
        }

because in accumulateThemeStaticFiles
system add nulled filename if any static files weren't found

https://github.com/magento/magento2/blob/2.4.4/lib/internal/Magento/Framework/App/Utility/Files.php#L955

if (!$files) {
                    $result[] = [
                        $themeArea,
                        $themePackage->getVendor() . '/' . $themePackage->getName(),
                        null,
                        null,
                        null,
                        null
                    ];
                }