> For the complete documentation index, see [llms.txt](https://docs.aurelia.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aurelia.io/developer-guides/error-messages/0151-to-0179/aur0165.md).

# AUR0165

## Error Message

`AUR0165: Expression error: unterminated quote in string literal: "{{expression}}"`

## Description

This error occurs when a string literal in a binding expression is missing its closing quote. This is a common syntax error when writing template expressions.

## Common Scenarios

```html
<!-- ❌ Wrong: Missing closing quotes -->
<div textcontent.bind="'Hello world"></div>
<div textcontent.bind='"Missing quote'></div>
<div class.bind="isActive ? 'active : 'inactive'"></div>
```

## Solution

```html
<!-- ✅ Correct: Properly closed quotes -->
<div textcontent.bind="'Hello world'"></div>
<div textcontent.bind='"Complete quote"'></div>
<div class.bind="isActive ? 'active' : 'inactive'"></div>
```

## Debugging Tips

1. **Count Quotes**: Ensure every opening quote has a matching closing quote
2. **Watch Escaping**: Use proper escaping for quotes within strings
3. **Use Different Quote Types**: Mix single and double quotes to avoid conflicts


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