# ToolError

- **Package:** libtmux-swift
- **Language:** Swift
- **Kind:** enum
- **Source:** https://github.com/libtmux/libtmux-swift/blob/f02a4668570e1cc5198c941413750e021f42c214/Sources/LibTmuxMCP/ToolCatalog.swift#L397
- **Page:** https://libtmux.org/reference/swift/toolerror/

Why a call could not produce its normal result.

## Members

- `!=(_:_:)` (function) — Returns a Boolean value indicating whether two values are not equal.
- `localizedDescription` (property) — Retrieve the localized description for this error.
- `unknownTool(_:)` (constant)
- `missingArgument(_:)` (constant)
- `unknownArguments(_:accepted:)` (constant)
- `wrongArgumentType(_:expected:)` (constant)
- `notAllowed(_:value:allowed:)` (constant)
- `deniedByTier(_:needs:allowed:)` (constant)
- `notEnabled(_:)` (constant)
- `refusedForSafety(_:)` (constant)
- `tmuxRejected(_:)` (constant)
- `timedOut(_:seconds:)` (constant)
- `tmux(_:)` (constant)
- `workspace(_:)` (constant)
- `internalFailure(_:)` (constant)
- `description` (property) — A textual representation of this instance.