# E0030

Warning name: `missing_package_alias`

The package alias is empty. The default package alias will be used instead.

## Erroneous example

```{literalinclude} /sources/error_codes/0030_error/moon.pkg.json
:caption: moon.pkg.json
```

## Suggestion

Use a non-empty alias for the package:

```{literalinclude} /sources/error_codes/0030_fixed/moon.pkg.json
:caption: moon.pkg.json
```