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| 2021-01-20 16:33:18 +0200 | commented question | Mysterious "must have a value" error @FrédéricC It gives me the same error. And yes, as far as I understand this function comes from HAP but I don't really grasp what that means. I've tried to add the line gap.LoadPackage("hap") but it yields a similar "hap must have a value" error. |
| 2021-01-20 12:20:40 +0200 | asked a question | Mysterious "must have a value" error I am using CoCalc to experiment with some GAP functionality in Sage. I am trying to run the following code. This yields the following error. What does this mean, and how do I solve this issue? |
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.