# Syntax error ampl

**URL:** <https://discuss.ampl.com/t/syntax-error-ampl/986>\
**Category:** Support\
**Created:** [March 7, 2024, 5:35pm UTC](https://discuss.ampl.com/t/syntax-error-ampl/986 "2024-03-07T17:35:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![shajida\_rahman](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.ampl.com/shajida_rahman/32/685_2.png) [@shajida\_rahman](https://discuss.ampl.com/u/shajida_rahman)\
**Post date:** [March 7, 2024, 5:35pm UTC](https://discuss.ampl.com/t/syntax-error-ampl/986/1 "2024-03-07T17:35:42Z")

</div>

Hi,

I am a beginner in using AMPL along with CPLEXto make a MILP model where I am trying to minimise energy consumption. I am testing my model but have run into these errors. I would appreciate any tips or help.

Thank you!

 ![code1](https://us1.discourse-cdn.com/flex019/uploads/ampl/original/1X/e4c32acfb14a46b71d922a9f67cd12a7225d595b.jpeg)  
 ![code2](https://us1.discourse-cdn.com/flex019/uploads/ampl/original/1X/c932704417fe5a1142fb7ae98eae3a2b4833db9e.jpeg)  
 ![code3](https://us1.discourse-cdn.com/flex019/uploads/ampl/original/1X/071d26c6d7988d529127fb672e3877ffbcae6a7f.jpeg)  
 ![code4](https://us1.discourse-cdn.com/flex019/uploads/ampl/original/1X/1fdb1f1e0c938681060f10d14660a72d57182498.jpeg)  
 ![err3](https://us1.discourse-cdn.com/flex019/uploads/ampl/original/1X/c9a63ab0af7b4f1850b49596fd20dd57f5a45bd7.jpeg)