Tangle works in my linux environment but doesn't quite work in my windows environment. Here's my org file. It defines a code snippet named "block" and then has a tangle section that refers to "block". Tangle results in a file with two blank lines in my windows environment. #+name: block #+begin_src clojure :results silent (+ 2 3) #+end_src #+begin_src clojure :tangle ../src/tmp.clj :results silent :exports none :noweb yes <> #+end_src But --- If my tangle section has regular code in it instead of referring to other named <> then the resulting file after tangle has the code you'd expect. Below is my org setup. The *Messages* buffer doesn't contain any interesting error messages. What can I do to find out what's going on? I did evaluate the following snippet to get C-c C-c to properly evaluate a clojure code block successfully on my machine. It didn't affect the issue of tangling. Just thought I'd mention it to be thorough. The snippet is from Eric Schulte. I thought that by deleting my elpa org folder and starting emacs again I'd get the latest (with his fix) but I discovered that I still needed to run this snippet to get C-c C-c to work. Thanks in advance for any help! (defun org-babel-execute:clojure (body params) "Execute a block of Clojure code with Babel." (require 'slime) (with-temp-buffer (insert (org-babel-expand-body:clojure body params)) ((lambda (result) (let ((result-params (cdr (assoc :result-params params)))) (if (or (member "scalar" result-params) (member "verbatim" result-params)) result (condition-case nil (org-babel-script-escape result) (error result))))) (slime-eval `(swank:eval-and-grab-output ,(buffer-substring-no-properties (point-min) (point-max))) (cdr (assoc :package params)))))) Emacs : GNU Emacs 24.0.50.1 (i386-mingw-nt5.1.2600) of 2011-09-03 on SHAN-PC Package: Org-mode version 7.7 current state: ============== (setq org-export-blocks '((src org-babel-exp-src-block nil) (comment org-export-blocks-format-comment t) (ditaa org-export-blocks-format-ditaa nil) (dot org-export-blocks-format-dot nil)) org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point org-babel-execute-safely-maybe) org-export-preprocess-before-selecting-backend-code-hook '(org-beamer-select-beamer-code) org-tab-first-hook '(org-hide-block-toggle-maybe org-src-native-tab-command-maybe org-babel-hide-result-toggle-maybe) org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers org-cycle-show-empty-lines org-optimize-window-after-visibility-change) org-agenda-before-write-hook '(org-agenda-add-entry-text) org-speed-command-hook '(org-speed-command-default-hook org-babel-speed-command-hook) org-babel-pre-tangle-hook '(save-buffer) org-occur-hook '(org-first-headline-recenter) org-export-interblocks '((lob org-babel-exp-lob-one-liners) (src org-babel-exp-inline-src-blocks)) org-metaup-hook '(org-babel-load-in-session-maybe) org-confirm-elisp-link-function 'yes-or-no-p org-export-latex-format-toc-function 'org-export-latex-format-toc-default org-export-preprocess-before-normalizing-links-hook '(org-remove-file-link-modifiers) org-clock-out-hook '(org-clock-remove-empty-clock-drawer) org-export-first-hook '(org-beamer-initialize-open-trackers) org-mode-hook '(#[nil "\300\301\302\303\304$\207" [org-add-hook change-major-mode-hook org-show-block-all append local] 5] #[nil "\300\301\302\303\304$\207" [org-add-hook change-major-mode-hook org-babel-show-result-all append local] 5] org-babel-result-hide-spec org-babel-hide-all-hashes) org-from-is-user-regexp nil org-export-latex-final-hook '(org-beamer-amend-header org-beamer-fix-toc org-beamer-auto-fragile-frames org-beamer-place-default-actions-for-lists) org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars) org-metadown-hook '(org-babel-pop-to-session-maybe) org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-after-todo-state-change-hook '(org-clock-out-if-current) org-export-blocks-postblock-hook '(org-exp-res/src-name-cleanup) org-babel-tangle-lang-exts '(("clojure" . "clj") ("emacs-lisp" . "el")) org-confirm-shell-link-function 'yes-or-no-p )