# camel_case_types

> Details about the camel_case_types diagnostic produced by the Dart analyzer.



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_The type name '{0}' isn't an UpperCamelCase identifier._

## Description

The analyzer produces this diagnostic when the name of a type (a class,
mixin, enum, or typedef) doesn't use the 'UpperCamelCase' naming
convention.

## Example

The following code produces this diagnostic because the name of the class
doesn't start with an uppercase letter:

```dart
class [!c!] {}
```

## Common fixes

Rename the type so that it has a valid name:

```dart
class C {}
```

