[Overview][Constants][Types][Classes][Procedures and functions][Variables] | Reference for unit 'Classes' (#fcl)

# EFilerError

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Exception raised by the component streaming system if an error occurs.

## Declaration

`type EFilerError = class(EStreamError) end;`

## Inheritance

`EFilerError` |  | Exception raised by the component streaming system if an error occurs.
`EStreamError` |  | Exception raised when an error occurs during read or write operations on a stream.
`Exception`
?
`TObject`

## Description

This class serves as an ancestor class for exceptions that are raised when an error occurs during component streaming. A EFilerError exception is raised when a class is registered twice.

## See also

EStreamError |  | Exception raised when an error occurs during read or write operations on a stream.
EReadError |  | Exception raised if an error occurs while reading from a stream.