Problem with precompiling NeuralPDE

Hi together,

I want to use the package NeuralPDE. I use Windows 10 and Julia 1.4.0. When I want to precompile it (by “using NeuralPDE” , I get the following error message:

ERROR: LoadError: LoadError: UndefVarError: AbstractADType not defined

ERROR: LoadError: Failed to precompile GalacticOptim [a75be94c-b780-496d-a8a9-0878b188d577]

Failed to precompile NeuralPDE [315f7962-48a3-4962-8226-d0f33b1235f0]

Has anyone an idea of the problem I have there and how to solve is?

Why are you using Julia 1.4? Current stable release is 1.7.

Julia is moving pretty fast. L(ong) T(erm) S(upport) is 1.6.4 now, I know of packages, which reduce 1.0 support already.