# Template mismatch during attachment. Attaching instanced component to template component **URL:** \ **Category:** C++\ **Tags:** Debugging, unreal-engine, CPP, Blueprint, question, UE4-27\ **Created:** [September 5, 2022, 1:05pm UTC](https://forums.unrealengine.com/t/template-mismatch-during-attachment-attaching-instanced-component-to-template-component/641895 "2022-09-05T13:05:58Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![MIkasa1009](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/mikasa1009/32/471575_2.png) [@MIkasa1009](https://forums.unrealengine.com/u/MIkasa1009)\ **Post date:** [May 29, 2023, 9:32am UTC](https://forums.unrealengine.com/t/template-mismatch-during-attachment-attaching-instanced-component-to-template-component/641895/2 "2023-05-29T09:32:05Z")
> [@Error: Template Mismatch during attachment. Attaching instanced component to template component](https://forums.unrealengine.com/t/error-template-mismatch-during-attachment-attaching-instanced-component-to-template-component/426596/3): > > I ran into the same problem because I changed the dependencies of the components in the C++ code. This was not a problem with the code, but because the UE4 engine did not properly reload all inherited blueprint classes. You can fix this by manually reloading the faulty blueprint classes --- _[View the full topic](https://forums.unrealengine.com/t/template-mismatch-during-attachment-attaching-instanced-component-to-template-component/641895)._