无法识别最后一个源块

Question

I have these three code blocks, but when i Cc Cc the last one, emacs tells me

Cc Cc can't do anything useful here

#+BEGIN_SRC org
,#+BEGIN_SRC python
print('hello');
,#+END_SRC

,#+RESULTS:
: None
#+END_SRC

#+BEGIN_SRC org
,#+BEGIN_SRC python :results output
print('hello');
,#+END_SRC

,#+RESULTS:
: hello
#+END_SRC

#+BEGIN_SRC python
return 1-2+100
#END_SRC

This is code blocks inside code blocks. Am I doing anything wrong that I can't see, or is this some sort of bug?

An even more dense example is this, that gives me the same

#+BEGIN_SRC org
,#+BEGIN_SRC python
,#+END_SRC
#+END_SRC

#+BEGIN_SRC org
,#+BEGIN_SRC python
,#+END_SRC
#+END_SRC

#+BEGIN_SRC python
return 1-2+100
#END_SRC

Answer 1

You are missing a + sign in the last line, which should read #+END_SRC , not #END_SRC .