## errors.InvalidMembersError


`members=` does not map a Collection's members to unpartitioned assets.


Usage

``` python
errors.InvalidMembersError(
    collection_name,
    problem,
    members,
)
```


Raised when `dd.build_collection_checks` is called.


## Methods

| Name | Description |
|----|----|
| [__init__()](#__init__) | Name what is wrong with the mapping, then every member of the Collection. |

------------------------------------------------------------------------


#### \_\_init\_\_()


Name what is wrong with the mapping, then every member of the Collection.


Usage

``` python
__init__(collection_name, problem, members)
```


##### Parameters


`problem: str`  
The rest of a sentence whose subject is `members`, and any fix.