4-6
Error
Messages
and
Debugging
Error
code/
Cause Countermeasure
Meaning
Error
4
•No
jump
destination
for
the
•Specify
the
correct
jump
Undefined
GOTO
or
GOSUB
statements
. destination.
error
•
There
is
no
data
to
be read
with
•Write
da
ta
READ/
READ#
or
RESTORE#.
•The
line number specified
with
•Correct
the
line number.
RESTORE does
not
exist.
Error
5
•When
the
argument is outside
•Correct
the
argument error.
Argument
the
input
range
of
commands
error
and
functions requiring argu-
men
ts.
•The
subscript in
the
array is
out-
•Change
the
subscript.
side
the
input
range.
•Attempted
to specify
two
arrays
• Change
the
array name.
with
the
same
name
but
differ-
ent
subscripts.
Error
6
•Attempted
to
use a variable
that
•Expand
the
variables with
the
Variable error was
not
added.
DEFM statement.
•Attempted
to
use
the
same varia-
•Change
the
variable name
for
ble name for a numeric variable
the
numeric variable and
and a character variable.
character variable.
•
Attempted
to
use an array name
• Use after declaring the array
subscript
that
was
not
declared.
or
correct
the
array name
subscript.
Error
7
•When
the
RETURN
statement
•Correspond
GOSUB -
Nesting error
is used
other
than
when
execut-
RETURN
or
FOR - NEXT
ing a subroutine. correctly.
•When
the
FOR
statement
and
NEXT statement
do
not
corre-
spond
or
when
the
variable
of
the
NEXT
statement
does
not
match
that
of
the
FOR
state-
ment.
•When
the
subroutine nesting
•Correct
the
subroutine or
(calling a subroutine from a
FO
R loop nesting level with-
subroutine) exceeds eight levels.
in
the range.
69
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