# tmuxp.exc.WorkspaceBuilderImportError

- **Module:** tmuxp.exc
- **Package:** tmuxp
- **Language:** Python
- **Kind:** exception
- **Source:** https://github.com/tmux-python/tmuxp/blob/153acdf6ff1268b14d3d03ed488f545a7123c8f1/src/tmuxp/exc.py#L127
- **Bases:** [`WorkspaceBuilderError`](/en/py/stable/workspace/reference/tmuxp-exc-workspacebuildererror/)
- **Page:** https://libtmux.org/en/py/stable/workspace/reference/tmuxp-exc-workspacebuilderimporterror/

Configured ``workspace_builder`` failed to import.

```python
>>> print(WorkspaceBuilderImportError("pkg:B"))
Could not import workspace builder 'pkg:B'....
```

## Members

### Other members

- [`__init__`](/en/py/stable/workspace/reference/tmuxp-exc-workspacebuilderimporterror-__init__/) (method)