Draft: Resolve "Implementation of new nodes creation"

Closes #454, #318, #364, #449, #381, #376, #208, #485

src/problem/problem.cpp

@@ -543,8 +543,9 @@ void Problem::emplaceStatesToFrame(FrameBasePtr _frame_ptr, const VectorComposit
     if (not _frame_ptr) throw std::runtime_error("Problem::emplaceStatesToFrame: the provided frame is nullptr");
 
     if (not frame_types_.has(_frame_states.getKeys()))
-        throw std::runtime_error("Problem::emplaceStatesToFrame: any unknown type. Asked for key " + _frame_states.getKeys() +
-                                 " but problem only know the types of " + frame_types_.getKeys());
+        throw std::runtime_error("Problem::emplaceStatesToFrame: any unknown type. Asked for key " +
+                                 _frame_states.getKeys() + " but problem only know the types of " +
+                                 frame_types_.getKeys());
 
     // emplace missing keys
     for (auto key : _frame_states.getKeys())