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