# errors.ProgramStartFailure

- **Module:** errors
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-ts/blob/ad09eaef7ffff40f510989ee0695852c44a31576/packages/libtmux/src/errors.ts#L452
- **Page:** https://libtmux.org/en/ts/latest/reference/errors-programstartfailure/

```ts
type ProgramStartFailure = "not-found" | "not-executable" | "start-directory"
```

Why a program never ran.