In C++ development, one of the more cryptic compiler messages is the phrase "does not name a type in C++". This error typically appears when the compiler expects a type identifier but encounters something it cannot interpret as a type, such as a misspelled class name, a missing declaration, or an incorrect use of a template The details matter here..
What Does the Error Mean?
When the compiler emits the message does not name a type in C++, it signals that the token it has just read does not correspond to any known type within the current scope. Basically, the identifier you intended to use