AUR4201

Error Message

AUR4201: Unconsumed argument#{{argIndex}} for validate binding behavior: {{argument}}

Description

This error occurs when extra or invalid arguments are passed to the & validate binding behavior. The validate binding behavior only accepts specific arguments.

Common Scenarios

<!-- ❌ Wrong: Too many arguments -->
<input value.bind="user.name & validate:blur:extra:invalid">

<!-- ❌ Wrong: Invalid argument format -->
<input value.bind="user.email & validate:123:abc">

Solution

<!-- ✅ Correct: Valid arguments -->
<input value.bind="user.name & validate">
<input value.bind="user.email & validate:blur">
<input value.bind="user.password & validate:manual">