C-RET not recognized by Emacs in terminal [duplicate]

Question

Attempting C-c C-RET gives me the following:

C-c RET is undefined

Any thoughts on what is happening here?

Answer 1

You don't say where you are doing that. What's the current mode?

But it looks like your terminal does not support the key sequence C-RET, and so treats it as RET.

Try C-h k C-RET. It will likely tell you what RET is bound to.