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Message
Explanation/Action
File
Already
in
Directory,
Filename already
exists
as a
directory
entry.
Kill
the
existing
file,
choose
another
filename, or
specify a drive
number.
File
Not Found.
Filename you
gave
was
not
found on
the available disks
or
the
file is
the incorrect
type
for
the
desired
operation.
Hardware
Fault
During
Disk
I/O.
Contact
RSSC.
I/O
Attempt
To
An
Unopen
File.
Open
the
file
before access.
Illegal
I/O
Attempt,
MOUNT/DDISMOUNTor
I
command
was
not
given
during
diskette
swap.
Can
be caused by an
I/O
attempt
to
a
differently
formatted
disk.
Format
the
disk
under
the current
version
of
TRSDOS-II
or
use
FCOPY.
When
initializing
a
hard
disk,
you must
also format the
secondary
drives,
Illegal
Disk
Change.
The
operating
system detected
an
illegal
disk
swap.
illegal File
Type.
File
type
you
used (FLR
or
VLR)
is
not the
type required
by
the
system.
Illegal
Operation
Requested.
For
multi-user
only.
Improper
File
Name
(Filespec).
Filespec
you
gave does
not
meet
the
standard
file
specifications.
Incorrect
Command
Parameter.
Option
or
argument
given
in
the
command
is
incorrect.
Invalid
Data Provided
By
Caller.
Data stream
to
be processed
has
illegal
characters.
Invalid
Space
Descriptor.
The space
descriptor
that
tells
the
operating
system which
extent
to
read
next
is
invalid.
Try
a
different diskette.
Maximum
Of 16
Files
May
Be
Open
At
Once.
Too
many
files
are
open
at
once.
Code
11
24
49
38
39
144
134
19
48
9
50
10
42
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