# AUR0166

## Error Message

`AUR0166: Expression error: unterminated template string: "{{expression}}"`

## Description

This error occurs when a template string (backticks) in a binding expression is missing the closing backtick.

## Example Trigger

```html
<!-- ❌ Missing closing backtick -->
<div textcontent.bind="`Hello ${name}"></div>
```

## Solution

* Close the template string:

```html
<!-- ✅ -->
<div textcontent.bind="`Hello ${name}`"></div>
```

## Troubleshooting

* If you don’t need a template string, use normal string concatenation or move formatting into a view-model getter.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.aurelia.io/developer-guides/error-messages/0151-to-0179/aur0166.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.