Bug fixes.

lamorton · lamorton · commit c0372aab794a · 2022-09-11T23:02:29.000-07:00
diff --git a/src/systems/systemstructure.jl b/src/systems/systemstructure.jl
@@ -7,7 +7,7 @@ using SymbolicUtils: quick_cancel, similarterm
 using ..ModelingToolkit
 import ..ModelingToolkit: isdiffeq, var_from_nested_derivative, vars!, flatten,
                           value, InvalidSystemException, isdifferential, _iszero,
-                          isparameter, isconstant
+                          isparameter, isconstant,
                           independent_variables, SparseMatrixCLIL, AbstractSystem,
                           equations, isirreducible
 using ..BipartiteGraphs
diff --git a/test/constants.jl b/test/constants.jl
@@ -3,7 +3,7 @@ using Test
 MT = ModelingToolkit
 
 @constants a = 1
-@test_throws MT.MissingDefaultError @constants b
+@test_throws MT.ArgumentError @constants b
 
 @variables t x(t) w(t)
 D = Differential(t)
