Questions tagged [debugging]

Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program.

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101 views

org-ref “Unbalanced parentheses”, 20306, 18248 error

I am new to org-mode and I am learning to use it to replace markdown for academic writing. M-x org-ref gave me this error: org-ref "Unbalanced parentheses", 20306, 18248 error What should I do ...
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3answers
463 views

what's wrong with my elisp? (“Debugger entered--Lisp error: (invalid-function”) [closed]

so I'm learning elisp and wouldn't ask this if I could figure out what was wrong with just the debug message. I'm trying to implement a super basic LRU cache (with the keys in the map just mapping to ...
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1answer
88 views

How to navigate stack frames in Emacs debugger?

I'm trying to debug the infamous Unrecognized entry in undo list undo-tree-canary, and after having Emacs debugger triggered on error, I want to move back and forth between stack frames and to examine ...
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0answers
572 views

Tramp hanging on writing or opening file

Tramp consistently hangs, for me, when opening or writing a remote file. None of the ‘why is Tramp hanging...?’ resources I've found seem to address my situation. What's odd is that this used to ...
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1answer
53 views

Why doesn't Emacs accept keyboard input in timers? [duplicate]

I've managed to write a timer that reliably causes keyboard input not to be accepted until I press Ctrl-G. The issue is, I don't know what causes the timer to lock up, what the stack frame is when it'...
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0answers
30 views

Some lisp errors not showing a backtrace

I have a few custom written methods in my init file. They run in to null issues - too often :) Anywhen, I noticed for some errors emacs pull up a backtrace/debugger prompt for me. But often the error ...
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1answer
366 views

Unable to quit emacs with `Wrong type argument: hash-table-p, nil`

I have some customisations in ~/.emacs.el. Today I refactored a piece that used dolist, directory-files, and find-file. I am now unable to quit Emacs in the normal way and I get this from the mini-...
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2answers
76 views

How to append an argument to an external command in init.el?

I 1must append a config file to 2package command, required as -p puppeteer-config.json. In my init.el, I tried changing the native command as shown below: From: (setq ob-mermaid-cli-path "~/...
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1answer
144 views

Surprisingly persistent local variable

A local variable keeps coming back, and I know not whence. In a certain buffer, TeX-command-extra-options is "--synctex=1", even after I have removed this from my init.el and restarted Emacs. I tried ...
2
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0answers
118 views

pop-to-buffer: Wrong type argument: window-valid-p, #<window 117>PNG warning: Interlace handling should be turned on when using png_read_image

I occasionally run into the following error when opening a new file with projectile: pop-to-buffer: Wrong type argument: window-valid-p, #<window 117>PNG warning: Interlace handling should be ...
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1answer
31 views

Figuring out what plugin is messing with my input

This is a more general question so I would like to know how to actually debug something like this. Suppose that I have some plugin that does section completion as code is being written. For example ...
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2answers
1k views

How to see *Messages* buffer in Spacemacs?

How to see *Messages* buffer as advised in this answer - https://emacs.stackexchange.com/a/32069/23367? Why do I need this? I am new to Spacemacs and I am trying to understand how it can help me ...
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2answers
579 views

Need help with `expand-region`: Symbol’s function definition is void: org-outline-overlay-data

If I try to use er/expand-region but it fails with Symbol’s function definition is void: org-outline-overlay-data. org-version : Org mode version 9.2.2 In the release notes for the current org (9.2),...
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0answers
247 views

end of file during parsing during org-mode export to latex

I have a weird thing going on with emacs on Fedora 29. Once in a blue moon, my Emacs will go HA! you cannot export to LaTeX with the "error": end of file during parsing during. However, if I move ...
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1answer
188 views

Wrong type argument: symbolp, possible mismatched parenteses in .spacemacs

I am trying to apply a fix to make it easier to change todo status in org mode. The code is the following: '( (org :variables org-want-todo-bindings t) ) from https://github.com/syl20bnr/...
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1answer
149 views

ansi-term - wrong type argument: characterp, return

When using ansi-term on Emacs a get the following error whenever I press enter in char-mode: wrong type argument: characterp, return I used toggle-debug-on-error and get the following: Debugger ...
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2answers
738 views

Invalid read syntax “#”

I'm having trouble using: (add-hook ’before-save-hook #’gofmt-before-save) This is supposed to format the go code before saving. The error I get is: Debugger entered--Lisp error: (invalid-read-...
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0answers
36 views

Emacs flashes when changing buffer with `ido-switch-buffer`

When I change buffer via ido-switch-buffer and enter a python buffer my entire Emacs flashes visually for a second. If I handle other files the same way, it does not. What can be the reason for that? ...
3
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1answer
71 views

How can I identify all changes to match-data?

I have a sporadic error when running query-replace: Args out of range: #<buffer lib.rs>, 0, 1 There are similar questions: Match data clobbered by buffer modification hooks (RegEx-)Replace: ...
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125 views

Ctrl-g will stop Emacs(terminal) and send it to background, ending with core-dump

I'm using Ubuntu server without GUI(ssh into the server), so I use Emacs in terminal, but since the first day I use it, Ctrl-g will stop Emacs and send it to background multiple times one day, it is ...
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1answer
83 views

Cannot jump to file or location link in grep-mode or compile-mode

I have recently installed emacs on a new system (Manjaro arch-linux), using my usual configuration (available here, if relevant). However, the jump function never works on this new system: whenever ...
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0answers
270 views

Valgrind interface for emacs

Is there an interface similar to 'gdb-mi' for using Valgrind in emacs? What are some ways to use Valgrind inside emacs?
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1answer
112 views

Invalid function: treemacs-block

I use treemacs for project management. For some reason (even if I don't have treemacs buffer opened) when I try to launch Dired for the first time I get invalid function: treemacs-block What is even ...
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1answer
2k views

how to resolve Symbol's value as variable is void when using ledger-mode

I am trying to setup a workflow wherein I generate Ledger files from different record files. Typically I like to view them in ledger mode after cleaning but if I make a change to the conversion, then ...
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0answers
693 views

Debugging in Unity3d with emacs?

I develop in Unity, and have been using emacs as my text editor for development. Debugging however has always needed to be done through monodevelop (and it crashes half the time while doing this). My ...
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0answers
1k views

Spacemacs error when loading `.spacemacs` which uses package `flycheck`

I added the following at the end of my ~/.spacemacs file: (use-package flycheck :defer t :init (global-flycheck-mode)) When I do this, I get Spacemacs encountered an error while loading your '/...
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1answer
54 views

Why is check-ert output cut at 70 characters column?

Sometimes when packaging emacs packages for Debian, I need to debug test failures. Then the debugging output is cut at 70 characters like in this bug report: https://bugs.debian.org/cgi-bin/bugreport....
5
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1answer
132 views

(RegEx-)Replace: Sporadic Match data clobbered by buffer modification hooks

I know this was asked in other contexts already, but I couldn't find anything related to C++ development with my hooks that could help me. I am working a lot with replace and query-replace and query-...
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0answers
74 views

Unknown *emacs* process

I recently realized that every time I lunch emacs, after a minute, a strange buffer appear in buffers list that is linked to an emacs process, infact it also appear in system's process list: When I ...
2
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1answer
41 views

Get asked to confirm safe theme forever

I created a theme which I stored in ~/.emacs.d/themes/, added this directory to custom-theme-load-path, and put (load-theme "the-theme.el") in my init.el. Now restarting emacs, I get prompted whether ...
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0answers
122 views

Multiple Quit messages in my *Messages* buffer

When I hold C-p or C-n to navigate any page, the movement is jerky and I get multiple Quit messages in my *Messages* buffer. I checked the C-h l to see the commands ran, it only has the C-n [next-...
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0answers
213 views

neotree: `all-the-icons-icon-for-dir` raises void-function error

I am getting an error with neotree and i dont know why the arguments from call-interactively are nil. Edit: The Problem is within neotree and i have an empty init file just with neotree and the ...
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1answer
47 views

Why do parts of my Emacs buffer turn invisible when I'm writing elisp?

When I'm writing elisp code, parts of the buffer that I press enter on turn invisible (i.e. they get the property invisible set to t). I haven't been able to reproduce this reliably, because it doesn'...
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1answer
704 views

Gui won't start, throws an “Args out of range: 0, 100”

The only response I got is this: Weird behavior: GUI won't start, but terminal emacs will But he doesn't clarify on the solution. I have the same problem, my .Xdefaults and/or .Xresources causes ...
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1answer
19 views

Adjust end index in selected region

Following the advice given here, I wrote the following code to enclose the text selection in phpbb italics tags : (defun wrap-in-phpbb-italics-tag (b e) "does what its name says." (interactive "...
2
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1answer
113 views

M-= shortcut suddenly stops working in Emacs in KDE

I'm trying to run M-= on a region of text, but nothing happens. I think the shortcut is registered (I don't get a message like "M-= is undefined") but the execution stops for some reason and there is ...
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1answer
1k views

Wrong type argument: stringp, (“~/capture.org”)

I am setting up a few hydras, one of which should open a frequently accessed file. The following command works, if I bind a keyboard sequence to it: (lambda () (interactive) (find-file "~/capture.org"...
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0answers
227 views

Emacs/realgud/Python: How to display variables at each step?

Using emacs and realgud one can have a separate buffer that automatically shows where the program is currently stopped (by displaying that line of source code). Is there an easy way to get realgud to ...
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0answers
29 views

fault-tolerant `check-parens` resp. `scan-lists`

Looking for a way to have a fault-tolerant navigation. I.e. in case of broken syntax, uncomplete forms etc. --when check-paren fails--, it should try some heuristics. Unfortunatly can't use check-...
1
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1answer
127 views

Problem debugging in `gud-mode' (M-x `gdb' with `many-windows' enabled)

I'm debugging a large codebase (written in C++). Everything works perfectly if I run gdb from a regular terminal as follows: $ gdb <program-name> Reading symbols from <program-name>......
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1answer
82 views

Unclear error message from a function call in my init file

With my Emacs 26.1 on my 10.13.6 Mac, I want Emacs to systemically open my file located at /Users/ewandelanoy/Documents/html_files/Printable/latinized_agreda2.txt with the mac-roman-mac encoding, ...
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1answer
112 views

how to get region start and region end from the whole buffer as variables to call another func

(defun buffer-to-shell() (let (buffer mark-whole-buffer))) (shell-command-on-region start end "sed s/foo/bar/") ;; start, end not defined ) As you might see there are undefined variables start ...
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1answer
45 views

Read-only text stops working after a while

This is a very strange issue and its cause is hard to determine. I often leave Emacs open for days, or even weeks at a time. My current emacs-uptime is 9 and a half days. That's pretty normal and ...
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1answer
47 views

Identify which mode is throwing an error

I am attempting to edit a file. Emacs is preventing me from making the edit, and throwing: Args out of range: #<buffer user.action.js>, 4965, 17721. It is completely not obvious to me where this ...
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0answers
40 views

helm-comint-input-ring - get error: shell-mode-map

windows 10, emacs 26.1, helm 3.0 I use C-c C-l (comint-dynamic-list-input-ring) I get something like this: But I don't like this. I want to use helm-comint-input-ring. I want to get something like ...
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2answers
667 views

When I start Emacs: Symbol's value as variable is void: shell-mode-map [duplicate]

System: Windows 10, Emacs 26.1, Helm 3.0 In my init.el: ;; Shell commands history (define-key shell-mode-map (kbd "C-c C-l") 'helm-comint-input-ring) When I start Emacs I get the following error: ...
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2answers
96 views

How to open 3 emacs windows when debugging using gdb

I am debugging a program that outputs 8 or more lines of display and requires input. So my IO window has to be say 10 rows or so in height. But I also want to see the source code AND of course the ...
0
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1answer
56 views

How to create a customized translation table when using the command translate-region?

When using the command translate-region, the command asks to use which table. There are already some predefined tables (by pressing TAB) such as cp51932-decode cp51932-encode eucjp-ms-decode ...
2
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0answers
415 views

How to diagnose emacs hanging and 100% cpu on startup?

How can I diagnose this issue? I've tried using strace and I see the following that seems to be stuck in a loop: recvfrom(5, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., ...
2
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1answer
94 views

Halting Clojure debugger after pressing the Continue Command

I use Emacs with Cider to debug Clojure Code. After setting a breakpoint using the default debugging framework, there appears the list of debugging options one might execute shown in this Figure I ...

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