@ngdoc error
@name $injector:nomod
@fullName Module Unavailable
@description

This error occurs when trying to "re-open" a module that has not yet been defined.

To define a new module, call {@link angular.module angular.module} with a name
and an array of dependent modules, like so:

```
// When defining a module with no module dependencies,
// the requires array should be defined and empty.
var myApp = angular.module('myApp', []);
```

To retrieve a reference to the same module for further configuration, call
`angular.module` without the `requires` array.

```
var myApp = angular.module('myApp');
```

Calling `angular.module` without the `requires` array when the module has not yet
been defined causes this error to be thrown. To fix it, define your module with
a name and an empty array, as in the first example above.