C++ Windows Form, how to fix error with adding icon/image?

Question

Windows Forms

In general, such a problem, I created a Windows Form template so that I would not constantly write everything, for some time everything worked properly, images were added, but later when adding an image to a pictureBox or just adding an ico for the form, such an error appears during compilation -

System.Resources.MissingManifestResourceException: "Could not find any resources matching the specified culture or culture neutral. Please check that 'template.MyForm.resources' is properly injected or linked into assembly 'WindowsForm2.0' at compile time, or that all required companion assemblies are present fully signed and can be downloaded."

points to a line

this->Icon = (cli::safe_cast<System::Drawing::Icon^>(resources->GetObject(L"$this.Icon")));