AUR0171

Error Message

AUR0171: Expression error: unexpected {{token}} at position "{{pos}}" for optional chain in "{{expression}}"

Description

This error occurs when optional chaining (?., ?.[ ], etc.) is used in an unsupported or malformed way.

Example Trigger

<!-- ❌ Malformed optional chain -->
<div textcontent.bind="user?."></div>

Solution

• Use valid optional chaining syntax, or use guards (if.bind) to avoid null access.

<!-- ✅ -->
<div textcontent.bind="user?.name"></div>