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Problem with GAP

asked 2020-04-17 16:23:04 +0200

jin gravatar image

Is GAP still compatible with sage? I followed the tutorial on this page, but it immediately broke at the first step:

sage: Q = QuantumGroup(['A',2])

Error message:

FeatureNotPresentError: GAP package QuaGroup is not available.

TestPackagevbailability("QuaGroup") evaluated to fail in GAP.

To install GAP package QuaGroup you can try to run 'sage -i gap_packages'.

Running sage -i gap_packages in my terminal (I'm on archlinux), I got

make: * No rule to make target 'all-toolchain'. Stop.

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answered 2020-04-17 21:17:16 +0200

vdelecroix gravatar image

updated 2020-04-17 21:18:21 +0200

It works for me (on archlinux). Do you use sage from pacman? If so, just install gap-packages. It is an optional dependency and is not installed by default.

(The error message is very misleading as sage -i does not work in this situation.)

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Asked: 2020-04-17 16:23:04 +0200

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Last updated: Apr 17 '20