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SciML · Jul 19, 2024 · 699a98d · 699a98d
1 parent 4d62d11
commit 699a98d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/systems/diffeqs/abstractodesystem.jl b/src/systems/diffeqs/abstractodesystem.jl
@@ -1567,7 +1567,8 @@ function InitializationProblem{iip, specialize}(sys::AbstractODESystem,
     defs = defaults(isys)
 
     # Check that all unknowns have guesses
-    unknowns_missing = setdiff(unknowns(isys), union(keys(guesses), keys(defs), keys(u0map)))
+    unknowns_given = union(keys(guesses), keys(defs), keys(u0map))
+    unknowns_missing = setdiff(unknowns(isys), unknowns_given)
     !isempty(unknowns_missing) &&
         throw(ArgumentError("Missing guesses for unknowns $(join(unknowns_missing, ", "))."))