I'm using JSON file and register in `Pubspec.ymal` but showing error and also when I use an image and register it, the same error also occurs. Maybe there is a formatting mistake in it, but don't know what the problem is.this is the [doc](https://www.dartlang.org/tools/pub/pubspec) I followed.

> 
> **Error on line 29, column 5 of pubspec.yaml: Expected a key while parsing a block mapping**.
>  **assets:**
> **^**
> 
> 
> 

This is my `pubspec.yaml` file

```
name: jsondata description: A new Flutter application.

  dependencies:  

  flutter:

  sdk: flutter

  cupertino_icons: ^0.1.0

  dev_dependencies:   

 flutter_test:

      sdk: flutter

    flutter:

    uses-material-design: true

      assets:

       - loadjson/person.json

```

[![enter image description here](https://i.stack.imgur.com/a85Kp.png)](https://i.stack.imgur.com/a85Kp.png)