AUR0089

Attribute pattern "yyyy" has already been registered.

Error message

Attribute pattern "{{0}}" has already been registered.

Parameters

1. pattern: The duplicate pattern string that was attempted to be registered.

Error explanation

This error occurs when you attempt to register an attribute pattern string with the IAttributeParser that has already been registered. Each pattern string must be unique.

Common causes

• Defining the same pattern string in multiple @attributePattern decorators or calls to IAttributeParser.registerPattern.

• Accidentally providing the same AttributePatternDefinition object multiple times during registration.

• A plugin or library registering a pattern that conflicts with one already defined in your application or another plugin.

How to fix

• Ensure each attribute pattern string defined in your application and plugins is unique.

• Check for duplicate pattern definitions in your codebase.

• If a conflict exists with a third-party plugin, consider renaming your pattern or contacting the plugin author.

Debugging tips

• Identify the duplicate pattern string from the error message.

• Search your codebase and dependencies for where this pattern string is defined and registered.

• Temporarily remove or comment out pattern registrations to isolate the source of the duplication.