57 lines
2.7 KiB
Org Mode
57 lines
2.7 KiB
Org Mode
** User:
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Why am I getting an error message with this (let* ((created-prop (org-entry-get nil "CREATED"))
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** Ellama:
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To diagnose the problem correctly, more context is needed. However, below are a few common reasons
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for getting error messages with your code snippet in Emacs Lisp, within the context of org-mode:
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1. ~org-entry-get~ requires the org-mode buffer to be current (active). The error might occur if
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your buffer isn't in org-mode, or if you're not at an org headline when this function is called.
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2. If "CREATED" is not an existing property for the current org headline, ~org-entry-get~ returns
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nil. If your code depends on ~created-prop~ being a certain type (like a string) and doesn't handle
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the nil case, this could be causing an error.
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3. The ~let*~ special form allows sequentially binding variables, where later bindings can see the
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values of previous bindings. If any of your later bindings reference ~created-prop~ and there is an
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error in your ~created-prop~ definition (as mentioned above), then this could cause an error.
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4. If you're not closing parentheses correctly that might be causing the error.
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A better error message or more context could lead to a more accurate answer.
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** User:
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The error message I am getting is "let' bindings can have only one value-form: org-entry-get, nil, "ID""
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** Ellama:
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The syntax you want to use for your ~let*~ is incorrect. Each variable-value pair in ~let*~ bindings
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should be enclosed in its own list. This allows multiple forms for each binding, but you have not
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included your bindings within their own list resulting in the above error message.
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Your corrected code should look something like this:
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#+BEGIN_SRC lisp
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(let* ((created-prop (org-entry-get nil "CREATED")))
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;; Other code goes here.
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)
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#+END_SRC
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In this case, ~created-prop~ is assigned the value of ~(org-entry-get nil "CREATED")~.
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The actual error message you're getting refers to ~"ID"~, so it's possible you may have another line
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of code where the mistake is. Make sure all your bindings are properly enclosed in lists.
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** User:
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why am I getting the error "let' bindings can have only one value-form: org-entry-get, nil, "ID"" when running a function that has this code (let (property (org-entry-get nil "ID")))
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** Ellama:
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Your issue arose from a syntax misconception in the ~let~ form. Here is how you should correctly
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structure your code:
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#+BEGIN_SRC lisp
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(let ((property (org-entry-get nil "ID")))
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;; ... code ...
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)
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#+END_SRC
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When you use the ~let~ form, your variable and its value should be enclosed in parentheses. Doing so
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demonstrates that the pair forms a single binding. As it was initially written, Lisp thought you
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were trying to bind three values (~org-entry-get~, ~nil~, and ~"ID"~) to ~let~, which is why the
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error message was presented.
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