I have attempted to compile the toolkit per https://github.com/nds-org/jupyter-et/blob/master/CactusTutorial.ipynb

It goes along until getting to this point and stops:

COMPILING Carpet/CarpetLib/src/prolongate_4d_o1_rf2.cc
make[2]: *** [/home/cenobyte/Cactus/lib/make/make.thornlib:113: make.checked] Error 2
make[1]: *** [/home/cenobyte/Cactus/lib/make/make.configuration:179: /home/cenobyte/Cactus/configs/sim/lib/libthorn_ML_CCZ4.a] Error 2
Creating /home/cenobyte/Cactus/configs/sim/lib/libthorn_CarpetLib.a
make: *** [Makefile:265: sim] Error 2

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Some googling has suggested those errors can be ignored (Can they be?), but when I try to run the HelloWorld test example I get this:

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./simfactory/bin/sim create-run helloworld --parfile arrangements/CactusExamples/HelloWorld/par/HelloWorld.par
Parameter file: /home/cenobyte/Cactus/arrangements/CactusExamples/HelloWorld/par/HelloWorld.par
Error: Executable /home/cenobyte/Cactus/exe/cactus_sim for configuration sim does not exist or is not readable
Aborting Simfactory.

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Is this because of the failed compile or something else?
Not sure how to fix that.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2539/unable-to-compile-on-ubuntu-2004-or-run