# New to AMPL

**URL:** https://discuss.ampl.com/c/new-to-ampl/41.md?page=2

[Latest](https://discuss.ampl.com/latest.md) · [Categories](https://discuss.ampl.com/categories.md) · [Tags](https://discuss.ampl.com/tags.md)

**Page:** 3

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## [New error message](https://discuss.ampl.com/t/new-error-message/340)

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**Author:** [@Atma\_Iyer](https://discuss.ampl.com/u/Atma_Iyer)\
**Replies:** 2\
**Last updated:** [January 24, 2023, 12:38pm UTC](https://discuss.ampl.com/t/new-error-message/340 "2023-01-24T12:38:00Z")

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I’m using this code from the colab.ampl.com ‘Getting Started’ section. It had been working just fine, but now generates an error message in Google Colab. MODULES, LICENSE\_UUID = \[‘ampl’, ‘coin’, ‘highs’, ‘gokestrel’\], N…

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## [Use of licenses in Colab](https://discuss.ampl.com/t/use-of-licenses-in-colab/331)

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**Author:** [@gaiallaplaya](https://discuss.ampl.com/u/gaiallaplaya)\
**Replies:** 2\
**Last updated:** [January 23, 2023, 2:20pm UTC](https://discuss.ampl.com/t/use-of-licenses-in-colab/331 "2023-01-23T14:20:37Z")

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Good morning, I received my ampl.lic file for new graduates but how can I use it in Colab? Thank you

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## [First program difference between two arrays](https://discuss.ampl.com/t/first-program-difference-between-two-arrays/329)

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**Author:** [@eros](https://discuss.ampl.com/u/eros)\
**Replies:** 2\
**Last updated:** [January 22, 2023, 9:23am UTC](https://discuss.ampl.com/t/first-program-difference-between-two-arrays/329 "2023-01-22T09:23:58Z")

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Hi, I’m new to AMPL and I’m trying to set a variable/param contains a difference betweend 2 arrays: File .mod set C; param Cost{C}; param Ric{C}; param Net{C}; file .dat data; set C := g1 g2 g3 g4 g5; param Ric…

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## [AMPL No variables declared error](https://discuss.ampl.com/t/ampl-no-variables-declared-error/297)

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**Author:** [@Simo\_C](https://discuss.ampl.com/u/Simo_C)\
**Replies:** 1\
**Last updated:** [January 4, 2023, 1:24am UTC](https://discuss.ampl.com/t/ampl-no-variables-declared-error/297 "2023-01-04T01:24:11Z")

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Hi, I have just started my first exercise with AMPL as part of an on-line course but I keep receiving the no variables declared error and I am not sure how to solve it. I put the following data in my file called “capston…

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## [AMPLPY using list as a parameter value](https://discuss.ampl.com/t/amplpy-using-list-as-a-parameter-value/274)

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**Author:** [@Atma\_Iyer](https://discuss.ampl.com/u/Atma_Iyer)\
**Replies:** 1\
**Last updated:** [January 3, 2023, 11:36am UTC](https://discuss.ampl.com/t/amplpy-using-list-as-a-parameter-value/274 "2023-01-03T11:36:44Z")

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Hi, I am using amplpy and having an issue when I try to use a list of strings as a parameter value, since param only takes scalar values (per my understanding). I essentially have the following: set S = {‘Mon’, ‘Tue’,…

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## [Intellisense in IDE](https://discuss.ampl.com/t/intellisense-in-ide/182)

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**Author:** [@fwd79](https://discuss.ampl.com/u/fwd79)\
**Replies:** 2\
**Last updated:** [December 18, 2022, 3:29pm UTC](https://discuss.ampl.com/t/intellisense-in-ide/182 "2022-12-18T15:29:55Z")

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Hi Inside AMP IDE there seems to be no support for any Intellisense / word completion nor there seems to be a list of keyboard shortcuts to quickly complete words like maximize or subject line as present in other IDEs. …

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