I want to change the schema namespace from 

```
xmlns:xs="http://www.w3.org/2001/XMLSchema"

```

to

```
xmlns:xs="http://www.w3.org/2007/XMLSchema-versioning"

```

since it supports "override". But it shows error:

> 
> The root element of a W3C XML Schema should be `<schema>` and its namespace should be '<http://www.w3.org/2001/XMLSchema>'
> 
> 
>