Update src/systems/diffeqs/odesystem.jl

Author: YingboMa

src/systems/diffeqs/odesystem.jl

@@ -97,7 +97,7 @@ function ODESystem(
     jac = RefValue{Any}(Matrix{Num}(undef, 0, 0))
     Wfact   = RefValue(Matrix{Num}(undef, 0, 0))
     Wfact_t = RefValue(Matrix{Num}(undef, 0, 0))
-    sysnames = getfield.(systems, :name)
+    sysnames = nameof.(systems)
     if length(unique(sysnames)) != length(sysnames)
         throw(ArgumentError("System names must be unique."))
     end