Hi,

I am trying to build Einstein Toolkit on my laptop with Ubuntu 18.04, i5 8th Gen using the instructions on the git page: https://github.com/nds-org/jupyter-et/blob/master/CactusTutorial.ipynb

While building the toolkit using  ./simfactory/bin/sim build -j<N> --thornlist ../einsteintoolkit.th, where I used N=2, I get the following error:

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There were 3 errors during execution of the CST
These must be corrected before compilation can proceed
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Warnings were generated during execution of the CST
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CST error in /home/abhishek/Cactus/lib/sbin/CST (at 322)
  -> Missing thorn ExternalLibraries/BLAS


CST error 2:
  -> Thorn 'LAPACK' requires the capability 'BLAS'.
     Please add a thorn that provides 'BLAS' to your ThornList or remove 'LAPACK' from it !


CST error 3:
  -> Thorn 'LORENE' requires the capability 'BLAS'.
     Please add a thorn that provides 'BLAS' to your ThornList or remove 'LORENE' from it !

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/home/abhishek/Cactus/lib/make/make.configuration:212: recipe for target '/home/abhishek/Cactus/configs/sim/config-data/make.thornlist' failed
make[1]: *** [/home/abhishek/Cactus/configs/sim/config-data/make.thornlist] Error 1
Makefile:260: recipe for target 'sim' failed
make: *** [sim] Error 2