# LibTmux.Snapshot.Fixture.FixtureError

- **Package:** libtmux-haskell
- **Language:** Haskell
- **Kind:** data type
- **Source:** https://github.com/libtmux/libtmux-haskell/blob/663e212622a02aa74a9bdc8ff71e2b45fcb1d4d5/src/LibTmux/Snapshot/Fixture.hs#L97
- **Page:** https://libtmux.org/en/haskell/latest/reference/libtmux-snapshot-fixture-t-fixtureerror/

```haskell
data FixtureError
```

A failed graph or complete-snapshot validation, with domain
 context from the validator. Failed input never becomes an empty snapshot.

## Instances

- instance [Eq](https://hackage.haskell.org/package/base-4.22.0.0/docs/Data-Eq.html#t:Eq) [`FixtureError`](/en/haskell/latest/reference/libtmux-snapshot-fixture-t-fixtureerror/) ([Source](https://github.com/libtmux/libtmux-haskell/blob/663e212622a02aa74a9bdc8ff71e2b45fcb1d4d5/src/LibTmux/Snapshot/Fixture.hs#L100))

- instance [Show](https://hackage.haskell.org/package/base-4.22.0.0/docs/Prelude.html#t:Show) [`FixtureError`](/en/haskell/latest/reference/libtmux-snapshot-fixture-t-fixtureerror/) ([Source](https://github.com/libtmux/libtmux-haskell/blob/663e212622a02aa74a9bdc8ff71e2b45fcb1d4d5/src/LibTmux/Snapshot/Fixture.hs#L100))

## Members

### Other members

- [`InvalidGraph`](/en/haskell/latest/reference/libtmux-snapshot-fixture-v-invalidgraph/) (data constructor): Invalid references, multiplicity, attachment counts or selections.
- [`InvalidSnapshot`](/en/haskell/latest/reference/libtmux-snapshot-fixture-v-invalidsnapshot/) (data constructor): Invalid metadata or attached-client context.

## Referenced declarations

- [`LibTmux.Snapshot.Fixture.FixtureError`](/en/haskell/latest/reference/libtmux-snapshot-fixture-t-fixtureerror/) (data type)

## Guides

Pages that discuss `FixtureError`.

- [Offline fixtures](/en/haskell/latest/guides/offline-fixtures/)