Q: I get the error "unrecognised options on command line:", what does this mean?

A:
If, when using APL, you get an error message containing "unrecognised options on command line" it means that an option has been specified which does not exist within APL. The 'offending' option name is listed after this error message.

If you are using the GUI and you get this message it probably means that the version of APL is too old to be compatible with the version of the GUI. It is recommended to update the APL software and try again.

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