PHP error category

Namespaces & Autoload

Name resolution and loading.

Namespaces & Autoload errors arise when name resolution and loading affect an executing PHP application or its supporting service. Use the exact signature and runtime context to narrow the cause before changing configuration.

The guides in this category separate code defects from environment differences, show focused diagnostics, and favor site-scoped corrections that preserve unrelated applications.

Technical diagram for namespaces-autoload

Guides in this category

Title Pattern Severity
Class not found Fatal error: Uncaught Error: Class "%s" not found in %s:%d fatal
Class not found after Composer install Class "%s" not found error
Interface not found Fatal error: Uncaught Error: Interface "App\\Contracts\\Exporter" not found in %s on line %d fatal
Trait not found Fatal error: Trait "App\\Support\\LogsEvents" not found in %s on line %d fatal

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