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I have some Java's scripts in a org file. And I use meghanada-mode in java-mode.

Each time I open this org file and do nothing, I get the following error since the mehanada server loaded by java-mode can't not find a project root for these scripts

Meghanada-Server Starting ...
error in process sentinel: meghanada--server-process-sentinel: Error:meghanada-server process stopped: finished
. Please check *meghanada-server-log* buffer

It seems that even I just open the org file org mode has already load all the major modes from org babels.

How can I prevent (or fix) this? I only want org load these things until I call C-c '.

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  • There are mutliple layers in the onion and you'll need to unravel them one by one. First, decouple the Org mode file question from the java question: restart your emacs, open a java file and see if you get the error. If you get an error, check the *meghanada-server-log* buffer and see what it says. Edit your question and add this information. If you don't get an error, then check the value of org-babel-load-languages: add that information to your question. Those are the first steps: let's see what you get and we'll go from there.
    – NickD
    Commented Dec 14, 2021 at 15:46

1 Answer 1

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You should take a look at the function org-babel-do-load-languages. I think you'll want something like this:

(org-babel-do-load-languages
 'org-babel-load-languages
 '((python . t)
   (C . t)
   (calc . t)
   (latex . t)
   (java . t)
   (ruby . t)
   (lisp . t)
   (scheme . t)
   (shell . t)
   (sqlite . t)
   (js . t)))

Just change the 't' to 'nil' for those you don't want.

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  • I don't have (java . t) in it, but it still loads. Commented Jun 3, 2018 at 4:01
  • Do you have (java . nil) ?
    – mclear
    Commented Jun 3, 2018 at 16:21
  • No, I don't.... Commented Jun 4, 2018 at 2:58

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