AUR0159

Error Message

AUR0159: Expression error: expected identifier to come after value converter operator: "{{expression}}"

Description

This error occurs when a value converter operator (|) is used without providing a converter name.

Example Trigger

<!-- ❌ Missing converter name -->
<div textcontent.bind="message |"></div>
<div textcontent.bind="count | :arg"></div>

Solution

Provide a value converter name after |.

<!-- ✅ -->
<div textcontent.bind="message | upper"></div>
<div textcontent.bind="count | numberFormat:'en-US'"></div>

Troubleshooting

• Check for trailing | in expressions.

• Ensure the converter is registered (otherwise you may get a different error during evaluation).