Hello Marc,
## After installation of simulator and mlxR files and running an example, I am getting the following error:
Error in simulxunit(model = model, group = group, treatment = treatment, :
…
# Metabolite concentration values are negative.
_relevant unittests are called [testAR](https://github.com/SwissTPH/openmalaria/blob/develop/unittest/PkPdComplianceSuite.h#L165) and [testAS](https://…