# Enum ethcore_util::migration::Error [−] [src]

    pub enum Error {
        CannotAddMigration,
        MigrationImpossible,
        Io(Error),
        Custom(String),
    }

Migration error.

## Variants

`CannotAddMigration`

Error returned when it is impossible to add new migration rules.

`MigrationImpossible`

Error returned when migration from specific version can not be performed.

`Io(Error)`

Io Error.

`Custom(String)`

Custom error.

## Trait Implementations

### `impl Debug for Error`
[src]

#### `fn fmt(&self, __arg_0: &mut Formatter) -> Result`

Formats the value using the given formatter.

### `impl Display for Error`
[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result<(), Error>`

Formats the value using the given formatter.

### `impl From<Error> for Error`
[src]

#### `fn from(e: Error) -> Self`

Performs the conversion.

### `impl From<String> for Error`
[src]

#### `fn from(e: String) -> Self`

Performs the conversion.

# Help

## Keyboard Shortcuts

?
  Show this help dialog
S
  Focus the search field
⇤
  Move up in search results
⇥
  Move down in search results
⏎
  Go to active search result
+
  Collapse/expand all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)