[pspk]

When I try to run a combustion code with reactingFoam solver in OpenFOAM 9, it is throwing a Fatal error saying the mixture type of "reactingMixture" is not valid. But the same mixture type and code works fine in the OpenFOAM 7. The OpenFoam 9 user guide also illustrates the reactingMixture type but I can't understand why it is showing this error. Can anyone help me fix this?

--> FOAM FATAL IO ERROR:
Unknown mixture type reactingMixture
Supported mixture types:
4
(
pureMixture
coefficientWilkeMultiComponentMixture
multiComponentMixture
valueMultiComponentMixture
)