# WorkspaceBuilderError

- **Package:** TmuxWorkspace
- **Language:** Swift
- **Kind:** enum
- **Source:** https://github.com/libtmux/libtmux-swift/blob/254f8b2be7eb60cacc3ffcb3ea8e456784f582df/Sources/TmuxWorkspace/WorkspaceBuilder.swift#L186
- **Page:** https://libtmux.org/en/swift/latest/workspace/reference/workspacebuildererror/

Why a workspace could not be built, including what happened while undoing.

Building creates a session and then fills it, so a failure partway leaves
something to clean up. ``rollbackFailed`` is the case where that cleanup
also failed: it carries both errors, because the original says what to fix
and the second says what was left behind.

## Members

- `!=(_:_:)` (function): Returns a Boolean value indicating whether two values are not equal.
- `localizedDescription` (property): Retrieve the localized description for this error.
- `noWindows` (constant)
- `sessionExists(_:)` (constant)
- `sessionVanished(_:)` (constant)
- `tmux(_:)` (constant)
- `rollbackFailed(original:cleanup:)` (constant)