Minified assets not found or generated during build phase

First, check file permissions for the affected assets to ensure they are accessible by the web server.

1. SSH to each web node and verify if the asset exists on all web nodes. (Note: On a non-split architecture, there will only be three nodes. On a split architecture, the first three nodes will be service nodes, but there could potentially be more.) For node X: magento-cloud ssh -p <cluster_id> -I X
2. Once you are on node X, run this command and check the permissions: ls -la pub/static/frontend/Namespace/theme/default/en_US/requirejs/require.min.js (Note: Replace the filename in the command with the actual asset name that is returning a 404 error).
3. If the file exists on some nodes but not others, submit a support request with the Contact Reason set to Infrastructure Incident.

Next, if the file doesn’t exist on all nodes, confirm that the .magento.env.yaml and app/etc/config.phpfiles are configured correctly for your environment.

1. On any of the web nodes, first run this command: vendor/bin/ece-tools wizard:scd-on-build

2. If the above command returns SCD on build is enabled, run this command to verify that the asset minification settings are enabled: grep -r minify_files app/etc/*.php. (Note: Replace the filename in the command with the actual asset name that is returning a 404 error). If the command returns no rows, it implies that minification is disabled. A value of 0 indicates that the item is disabled, and 1 means it is enabled.

3. If there are no rows returned:

   • Run the config:dump command to save the minification config to app/etc/config.php (see Setting the SCD on build).
   • Commit it to the repository.
   • Redeploy the instance.

4. If any of the asset minification settings has a value of 0that should be minified:

   • Update the value in app/etc/config.php to 1.
   • Commit it to the repository.
   • Redeploy the instance.

5. Check the .magento.env.yaml file and ensure that you have added the SCD Environment variableunder the proper stage:

   • SCD on Build: The Build variable should be placed under the build: stage.
   • SCD on Deploy: The Deploy variable should be placed under the deploy: stage.
   • After ensuring that the variable has been added under the appropriate stage, commit the file to the repository and redeploy the instance.

Finally, test access to the affected URLs after making adjustments.