Finally found a solution. really hard. spend a lot of time on this issue.
The discussion is at here:
https://github.com/clojure-emacs/clojure-mode/pull/465 Here is my final
source code. paste here as a copy. Hope can help someone want same thing.
;; auto start CIDER REPL session in a complete
I got new update on this issue.
I think it is caused by `(clojure-find-ns)`.
Here is my found:
I created a simple clojure project for used by all org-babel-clojure src
blocks.
```elisp
(progn
(find-file (expand-file-name
"~/.emacs.d/Org-mode/ob-clojure/src/ob_clojure/core.clj"))