# AUR0167

## Error Message

`AUR0167: Expression error: missing expected token "{{token}}" in "{{expression}}"`

## Description

This error occurs when the parser expects a specific token (for example `)`, `]`, `:`, etc.) but does not find it.

## Example Trigger

```html
<!-- ❌ Missing closing ')' -->
<div textcontent.bind="(count + 1"></div>
```

## Solution

* Fix the syntax by adding the missing token.

## Troubleshooting

* Look for unmatched parentheses/brackets/braces.
* Reduce the expression and rebuild it incrementally to find the missing token.


---

# 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/aur0167.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.