# tmux.VersionTooLowError

- **Module:** tmux
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** struct
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/server_version.go#L77
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-versiontoolowerror/

VersionTooLowError reports the installed and required tmux feature levels. It matches [ErrVersionTooLow] through errors.Is; callers can recover its fields with errors.As.

Subcommand and Feature are set when one optional capability within a command
was refused rather than the command itself, which is what
[UnsupportedPolicy] governs.

## Members

- `Current` (attribute): Current is the installed tmux feature level.
- `Minimum` (attribute): Minimum is the requested minimum feature level.
- `Subcommand` (attribute): Subcommand names the tmux subcommand whose optional capability was refused. Empty when the command itself is below its floor.
- `Feature` (attribute): Feature names the refused optional capability. Empty when the command itself is below its floor.
- `Error` (method): Error implements error.
- `Unwrap` (method): Unwrap makes VersionTooLowError compatible with ErrVersionTooLow.