fix print errors

Author: vyudu

src/initialization.jl

@@ -301,11 +301,11 @@ end
 function initialization_status(prob::AbstractSciMLProblem)
     has_initialization_data(prob.f) || return nothing
 
-    sys = prob.f.initialization_data.initializeprob.f.sys
-    isnothing(sys) && return nothing
+    iprob = prob.f.initialization_data.initializeprob
+    isnothing(prob) && return nothing
 
-    neqs = length(equations(sys))
-    nunknowns = length(unknowns(sys))
+    neqs = length(iprob.f(iprob.u0, iprob.p))
+    nunknowns = length(iprob.u0)
 
     if neqs > nunknowns
         return OVERDETERMINED

src/problems/problem_utils.jl

@@ -29,9 +29,15 @@ function Base.summary(io::IO, prob::AbstractDEProblem)
         no_color, 
         ". In-place: ", type_color, isinplace(prob), no_color) 
     init = initialization_status(prob)
-    !isnothing(init) && print(io, "Initialization status: ", type_color, initialization_status(prob), no_color)
-    println(io)
-    print(io, "Non-trivial mass matrix: ", type_color, !(prob.f.mass_matrix isa LinearAlgebra.UniformScaling{Bool}), no_color)
+    !isnothing(init) && begin 
+        println(io)
+        print(io, "Initialization status: ", type_color, initialization_status(prob), no_color)
+    end
+
+    hasproperty(prob.f, :mass_matrix) && begin
+        println(io)
+        print(io, "Non-trivial mass matrix: ", type_color, !(prob.f.mass_matrix isa LinearAlgebra.UniformScaling{Bool}), no_color)
+    end
 end
 
 function Base.summary(io::IO, prob::AbstractLinearProblem)