### - i -

- ILLEGAL_SEQUENCE : Glib::ConvertError
- INCONSISTENT_NEWLINE_OPTIONS : Glib::RegexError
- INEXISTENT_SUBPATTERN_REFERENCE : Glib::RegexError
- INFINITE_LOOP : Glib::RegexError
- INTERNAL : Glib::RegexError , Gio::ResolverError
- INTERRUPTED : Glib::FileError
- INVAL : Glib::SpawnError
- INVALID_ARGUMENT : Glib::FileError , Glib::IOChannelError , Gio::Error
- INVALID_CONDITION : Glib::RegexError
- INVALID_CONTENT : Glib::MarkupError
- INVALID_DATA : Gio::Error
- INVALID_ESCAPE_IN_CHARACTER_CLASS : Glib::RegexError
- INVALID_FILENAME : Gio::Error
- INVALID_OCTAL_VALUE : Glib::RegexError
- INVALID_VALUE : Glib::KeyFileError
- IO : Glib::SpawnError
- IO_ERROR : Glib::FileError , Glib::IOChannelError
- IS_DIRECTORY : Glib::FileError , Gio::Error , Glib::IOChannelError
- ISDIR : Glib::SpawnError