what does the message *ampl? mean?

[raits77]

Hello,

When I run my model I get the *ampl? in the last line instead of ampl? or
ampl;
The problem is that I cannot add any other commands and I have to close the
terminal window (I'm using a mac) and reopen it. I cannot display any of the
variables or get a .out file.

I appreciate your help.
Thanks
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[victor.z...@gmail.com]

The "ampl?" prompt means that the last declaration or statement was incomplete and AMPL is waiting for additional input. Most likely a terminating semicolon is missing in the last declaration or statement of your model.

For example, the following incomplete command gives you the "ampl?" prompt:

  ampl: print 42

Entering semicolon completes the statement, making AMPL to print 42 and give you the normal "ampl:" prompt:

  ampl? ;

  42

  ampl:

HTH,

Victor

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[raits77]

Hello Victor,

Thanks for the help, but what about when the prompt is "*ampl?" and not
"ampl?"? When the "*" is also there then entering ";" does not result in
"ampl:" but the "*ampl?" appears again. What can I do in that case. I
checked my files (.mod, .dat and .run) and they all end with ";".

Thanks,
Raido

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[victor.z...@gmail.com]

Sorry, I didn't notice '*'. The "*ampl:" prompt means that you have an unterminated comment, for example:

ampl: /* abc

*ampl: 

Regards,

Victor