Scripting error message

[NZG]

Every time I run a script it in Octave I get the message:

source(Problem72.m)
error: can't perform indexing operations for <unknown type> type
error: evaluating argument list element number 1

My script looks like this
#Problem 7.2
1;

A = [1 1;1 1];
B = [0;1];
C = [1 0];

m = 1;
alpha = 10;
beta = 10;

It works just fine, but always generates the error message.
Is my syntax wrong?
What am I forgetting?

thx,
NZG.




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