Stream already open
You have tried to OPEN to a stream which has already been opened to a
new channel (m,n,t ot bl. The stream can only be opened if it is first closed.
Verification has failed
A saved file does not agree with the program. data or code currently in the
computer.
Writing to a ‘read’ file
You have tried to output data to an existing file. The existing file should be
erased if it is not needed. Otherwise. a new file should be used.
Wrong file type
You have tried either to INPUT or MOVE a saved file or to LOAD, VERIFY
or MERGE a PRINT type of file, or to LOAD a CODE or DATA file as a
program (or vice versa).
If you are using INPUT then you should be using LOAD. If you are using
LOAD then either you should use the CODE or DATA options or YOU should
“se INPUT.
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