counsel-colors-emacs stopped working

[Dickby]

invoking the command counsel-colors-emacs gives the error message:

counsel-colors--update-highlight: Wrong type argument: number-or-marker-p, nil

I tested this with emacs -Q
emacs version:
26.0.50

[abo-abo]

Can't reproduce.
Please try to reinstall/restart and/or reproduce on a stable version of Emacs.

[Dickby]

The error is somewhere hidden in my .emacs.d directory.
Strange that it occurs even if i start emacs with -Q and only package-initialize.
But if I start it without any .emacs.d directory the error is gone.
I close this issue.

[Dickby]

Since i opened this issue, i can't find what causes the error in my config.
Even if I start emacs with -Q and only package-initialize i get this error.
only if i rename my .emacs.d reinstall ivy and counsel, It is still working.
Maby you can help me track the error?
somehow caused by the return value of counsel-colors--best-contrast-color
if i override the function with a dummy that just returns "black" counsel-colors-emacs is still working.
if I toggle-debug-on-error it gives

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  counsel-colors--best-contrast-color("0000000")
  counsel-colors--update-highlight(#("black                    #000000000000              " 0 25 (result "black") 25 40 (face (:foreground "black")) 40 50 (face (:background "black")) 50 52 (face (:foreground "black"))))
  #[0 "\302�\303H	>\204�\304\305\306�D\"\210�\307H!\207" [ivy-last cl-struct-ivy-state-tags counsel-colors--update-highlight 0 signal wrong-type-argument ivy-state 23] 5]()
  ivy--insert-minibuffer(#("\nblack                    #000000000000              \nDimGrey                  #696969696969              dim gray, dim grey, DimGray\nDarkGrey                 #a9a9a9a9a9a9              dark gray, dark grey, DarkGray\ngrey                     #bebebebebebe              gray\nLightGrey                #d3d3d3d3d3d3              light gray, light grey, LightGray\ngainsboro                #dcdcdcdcdcdc              \nWhiteSmoke               #f5f5f5f5f5f5              white smoke\nwhite                    #ffffffffffff              \nred                      #ffff00000000              " 0 1 (read-only nil) 1 26 (result "black" face ((:foreground "black") ivy-current-match) read-only nil) 26 41 (face ((:foreground "black") ivy-current-match) read-only nil) 41 51 (face ((:foreground "black") ivy-current-match) read-only nil) 51 53 (face ((:foreground "black") ivy-current-match) read-only nil) 53 54 (read-only nil) 54 79 (result "DimGrey" read-only nil) 79 94 (face (:foreground "DimGrey") read-only nil) 94 104 (face (:background "DimGrey") read-only nil) 104 133 (face (:foreground "DimGrey") read-only nil) 133 134 (read-only nil) 134 159 (result "DarkGrey" read-only nil) 159 174 (face (:foreground "DarkGrey") read-only nil) 174 184 (face (:background "DarkGrey") read-only nil) 184 216 (face (:foreground "DarkGrey") read-only nil) 216 217 (read-only nil) 217 242 (result "grey" read-only nil) 242 257 (face (:foreground "grey") read-only nil) 257 267 (face (:background "grey") read-only nil) 267 273 (face (:foreground "grey") read-only nil) 273 274 (read-only nil) 274 299 (result "LightGrey" read-only nil) 299 314 (face (:foreground "LightGrey") read-only nil) 314 324 (face (:background "LightGrey") read-only nil) 324 359 (face (:foreground "LightGrey") read-only nil) 359 360 (read-only nil) 360 385 (result "gainsboro" read-only nil) 385 400 (face (:foreground "gainsboro") read-only nil) 400 410 (face (:background "gainsboro") read-only nil) 410 412 (face (:foreground "gainsboro") read-only nil) 412 413 (read-only nil) 413 438 (result "WhiteSmoke" read-only nil) 438 453 (face (:foreground "WhiteSmoke") read-only nil) 453 463 (face (:background "WhiteSmoke") read-only nil) 463 476 (face (:foreground "WhiteSmoke") read-only nil) 476 477 (read-only nil) 477 502 (result "white" read-only nil) 502 517 (face (:foreground "white") read-only nil) 517 527 (face (:background "white") read-only nil) 527 529 (face (:foreground "white") read-only nil) 529 530 (read-only nil) 530 555 (result "red" read-only nil) 555 570 (face (:foreground "red") read-only nil) 570 580 (face (:background "red") read-only nil) 580 582 (face (:foreground "red") read-only nil)))
  ivy--exhibit()
  ivy--minibuffer-setup()
  #[0 "\302\303\301\242\"\210\300 \207" [ivy--minibuffer-setup (#0) remove-hook minibuffer-setup-hook] 3]()
  read-from-minibuffer("%d Emacs color: " nil (keymap keymap (2 . ivy-scroll-down-command) (6 . ivy-scroll-up-command) (67109110 . ivy-avy) (C-return . ivy-immediate-done) (3 keymap (19 . ivy-rotate-sort) (1 . ivy-toggle-ignore) (15 . ivy-occur)) (67108903 . ivy-avy) (33554464 . ivy-restrict-to-matches) (15 . hydra-ivy/body) (22 . ivy-scroll-up-command) (7 . minibuffer-keyboard-quit) (32 . self-insert-command) (18 . ivy-reverse-i-search) (19 . ivy-next-line-or-history) (remap keymap (describe-mode . ivy-help) (kill-ring-save . ivy-kill-ring-save) (kill-line . ivy-kill-line) (scroll-down-command . ivy-scroll-down-command) (scroll-up-command . ivy-scroll-up-command) (end-of-buffer . ivy-end-of-buffer) (beginning-of-buffer . ivy-beginning-of-buffer) (kill-word . ivy-kill-word) (forward-char . ivy-forward-char) (delete-char . ivy-delete-char) (backward-kill-word . ivy-backward-kill-word) (backward-delete-char-untabify . ivy-backward-delete-char) (delete-backward-char . ivy-backward-delete-char) (previous-line . ivy-previous-line) (next-line . ivy-next-line)) (9 . ivy-partial-or-done) (10 . ivy-alt-done) (27 keymap (1 . ivy-read-action) (15 . ivy-dispatching-call) (111 . ivy-dispatching-done-hydra) (105 . ivy-insert-current) (106 . ivy-yank-word) (114 . ivy-toggle-regexp-quote) (16 . ivy-previous-line-and-call) (14 . ivy-next-line-and-call) (118 . ivy-scroll-down-command) (112 . ivy-previous-history-element) (110 . ivy-next-history-element) (10 . ivy-immediate-done) (13 . ivy-call)) (13 . ivy-done)) nil counsel-colors-emacs-history)
  ivy-read("%d Emacs color: " (#("black                    #000000000000              " 0 25 (result "black") 25 40 (face (:foreground "black")) 40 50 (face (:background "black")) 50 52 (face (:foreground "black"))) #("DimGrey                  #696969696969              dim gray, dim grey, DimGray" 0 25 (result "DimGrey") 25 40 (face (:foreground "DimGrey")) 40 50 (face (:background "DimGrey")) 50 79 (face (:foreground "DimGrey"))) #("DarkGrey                 #a9a9a9a9a9a9              dark gray, dark grey, DarkGray" 0 25 (result "DarkGrey") 25 40 (face (:foreground "DarkGrey")) 40 50 (face (:background "DarkGrey")) 50 82 (face (:foreground "DarkGrey"))) #("grey                     #bebebebebebe              gray" 0 25 (result "grey") 25 40 (face (:foreground "grey")) 40 50 (face (:background "grey")) 50 56 (face (:foreground "grey"))) #("LightGrey                #d3d3d3d3d3d3              light gray, light grey, LightGray" 0 25 (result "LightGrey") 25 40 (face (:foreground "LightGrey")) 40 50 (face (:background "LightGrey")) 50 85 (face (:foreground "LightGrey"))) #("gainsboro                #dcdcdcdcdcdc              " 0 25 (result "gainsboro") 25 40 (face (:foreground "gainsboro")) 40 50 (face (:background "gainsboro")) 50 52 (face (:foreground "gainsboro"))) #("WhiteSmoke               #f5f5f5f5f5f5              white smoke" 0 25 (result "WhiteSmoke") 25 40 (face (:foreground "WhiteSmoke")) 40 50 (face (:background "WhiteSmoke")) 50 63 (face (:foreground "WhiteSmoke"))) #("white                    #ffffffffffff              " 0 25 (result "white") 25 40 (face (:foreground "white")) 40 50 (face (:background "white")) 50 52 (face (:foreground "white"))) #("red                      #ffff00000000              " 0 25 (result "red") 25 40 (face (:foreground "red")) 40 50 (face (:background "red")) 50 52 (face (:foreground "red"))) #("OrangeRed                #ffff45450000              orange red" 0 25 (result "OrangeRed") 25 40 (face (:foreground "OrangeRed")) 40 50 (face (:background "OrangeRed")) 50 62 (face (:foreground "OrangeRed"))) #("DarkOrange               #ffff8c8c0000              dark orange" 0 25 (result "DarkOrange") 25 40 (face (:foreground "DarkOrange")) 40 50 (face (:background "DarkOrange")) 50 63 (face (:foreground "DarkOrange"))) #("orange                   #ffffa5a50000              " 0 25 (result "orange") 25 40 (face (:foreground "orange")) 40 50 (face (:background "orange")) 50 52 (face (:foreground "orange"))) #("gold                     #ffffd7d70000              " 0 25 (result "gold") 25 40 (face (:foreground "gold")) 40 50 (face (:background "gold")) 50 52 (face (:foreground "gold"))) #("yellow                   #ffffffff0000              " 0 25 (result "yellow") 25 40 (face (:foreground "yellow")) 40 50 (face (:background "yellow")) 50 52 (face (:foreground "yellow"))) #("chartreuse               #7f7fffff0000              " 0 25 (result "chartreuse") 25 40 (face (:foreground "chartreuse")) 40 50 (face (:background "chartreuse")) 50 52 (face (:foreground "chartreuse"))) #("LawnGreen                #7c7cfcfc0000              lawn green" 0 25 (result "LawnGreen") 25 40 (face (:foreground "LawnGreen")) 40 50 (face (:background "LawnGreen")) 50 62 (face (:foreground "LawnGreen"))) #("green                    #0000ffff0000              " 0 25 (result "green") 25 40 (face (:foreground "green")) 40 50 (face (:background "green")) 50 52 (face (:foreground "green"))) #("SpringGreen              #0000ffff7f7f              spring green" 0 25 (result "SpringGreen") 25 40 (face (:foreground "SpringGreen")) 40 50 (face (:background "SpringGreen")) 50 64 (face (:foreground "SpringGreen"))) #("MediumSpringGreen        #0000fafa9a9a              medium spring green" 0 25 (result "MediumSpringGreen") 25 40 (face (:foreground "MediumSpringGreen")) 40 50 (face (:background "MediumSpringGreen")) 50 71 (face (:foreground "MediumSpringGreen"))) #("cyan                     #0000ffffffff              " 0 25 (result "cyan") 25 40 (face (:foreground "cyan")) 40 50 (face (:background "cyan")) 50 52 (face (:foreground "cyan"))) #("DeepSkyBlue              #0000bfbfffff              deep sky blue" 0 25 (result "DeepSkyBlue") 25 40 (face (:foreground "DeepSkyBlue")) 40 50 (face (:background "DeepSkyBlue")) 50 65 (face (:foreground "DeepSkyBlue"))) #("blue                     #00000000ffff              " 0 25 (result "blue") 25 40 (face (:foreground "blue")) 40 50 (face (:background "blue")) 50 52 (face (:foreground "blue"))) #("MediumBlue               #00000000cdcd              medium blue" 0 25 (result "MediumBlue") 25 40 (face (:foreground "MediumBlue")) 40 50 (face (:background "MediumBlue")) 50 63 (face (:foreground "MediumBlue"))) #("DarkViolet               #94940000d3d3              dark violet" 0 25 (result "DarkViolet") 25 40 (face (:foreground "DarkViolet")) 40 50 (face (:background "DarkViolet")) 50 63 (face (:foreground "DarkViolet"))) #("DarkMagenta              #8b8b00008b8b              dark magenta" 0 25 (result "DarkMagenta") 25 40 (face (:foreground "DarkMagenta")) 40 50 (face (:background "DarkMagenta")) 50 64 (face (:foreground "DarkMagenta"))) #("magenta                  #ffff0000ffff              " 0 25 (result "magenta") 25 40 (face (:foreground "magenta")) 40 50 (face (:background "magenta")) 50 52 (face (:foreground "magenta"))) #("DarkRed                  #8b8b00000000              dark red" 0 25 (result "DarkRed") 25 40 (face (:foreground "DarkRed")) 40 50 (face (:background "DarkRed")) 50 60 (face (:foreground "DarkRed"))) #("brown                    #a5a52a2a2a2a              " 0 25 (result "brown") 25 40 (face (:foreground "brown")) 40 50 (face (:background "brown")) 50 52 (face (:foreground "brown"))) #("firebrick                #b2b222222222              " 0 25 (result "firebrick") 25 40 (face (:foreground "firebrick")) 40 50 (face (:background "firebrick")) 50 52 (face (:foreground "firebrick"))) #("IndianRed                #cdcd5c5c5c5c              indian red" 0 25 (result "IndianRed") 25 40 (face (:foreground "IndianRed")) 40 50 (face (:background "IndianRed")) 50 62 (face (:foreground "IndianRed"))) #("LightCoral               #f0f080808080              light coral" 0 25 (result "LightCoral") 25 40 (face (:foreground "LightCoral")) 40 50 (face (:background "LightCoral")) 50 63 (face (:foreground "LightCoral"))) #("salmon                   #fafa80807272              " 0 25 (result "salmon") 25 40 (face (:foreground "salmon")) 40 50 (face (:background "salmon")) 50 52 (face (:foreground "salmon"))) #("LightSalmon              #ffffa0a07a7a              light salmon" 0 25 (result "LightSalmon") 25 40 (face (:foreground "LightSalmon")) 40 50 (face (:background "LightSalmon")) 50 64 (face (:foreground "LightSalmon"))) #("tomato                   #ffff63634747              " 0 25 (result "tomato") 25 40 (face (:foreground "tomato")) 40 50 (face (:background "tomato")) 50 52 (face (:foreground "tomato"))) #("coral                    #ffff7f7f5050              " 0 25 (result "coral") 25 40 (face (:foreground "coral")) 40 50 (face (:background "coral")) 50 52 (face (:foreground "coral"))) #("DarkSalmon               #e9e996967a7a              dark salmon" 0 25 (result "DarkSalmon") 25 40 (face (:foreground "DarkSalmon")) 40 50 (face (:background "DarkSalmon")) 50 63 (face (:foreground "DarkSalmon"))) #("RosyBrown                #bcbc8f8f8f8f              rosy brown" 0 25 (result "RosyBrown") 25 40 (face (:foreground "RosyBrown")) 40 50 (face (:background "RosyBrown")) 50 62 (face (:foreground "RosyBrown"))) #("sienna                   #a0a052522d2d              " 0 25 (result "sienna") 25 40 (face (:foreground "sienna")) 40 50 (face (:background "sienna")) 50 52 (face (:foreground "sienna"))) #("SaddleBrown              #8b8b45451313              saddle brown" 0 25 (result "SaddleBrown") 25 40 (face (:foreground "SaddleBrown")) 40 50 (face (:background "SaddleBrown")) 50 64 (face (:foreground "SaddleBrown"))) #("chocolate                #d2d269691e1e              " 0 25 (result "chocolate") 25 40 (face (:foreground "chocolate")) 40 50 (face (:background "chocolate")) 50 52 (face (:foreground "chocolate"))) #("peru                     #cdcd85853f3f              " 0 25 (result "peru") 25 40 (face (:foreground "peru")) 40 50 (face (:background "peru")) 50 52 (face (:foreground "peru"))) #("SandyBrown               #f4f4a4a46060              sandy brown" 0 25 (result "SandyBrown") 25 40 (face (:foreground "SandyBrown")) 40 50 (face (:background "SandyBrown")) 50 63 (face (:foreground "SandyBrown"))) #("burlywood                #dedeb8b88787              " 0 25 (result "burlywood") 25 40 (face (:foreground "burlywood")) 40 50 (face (:background "burlywood")) 50 52 (face (:foreground "burlywood"))) #("tan                      #d2d2b4b48c8c              " 0 25 (result "tan") 25 40 (face (:foreground "tan")) 40 50 (face (:background "tan")) 50 52 (face (:foreground "tan"))) #("NavajoWhite              #ffffdedeadad              navajo white" 0 25 (result "NavajoWhite") 25 40 (face (:foreground "NavajoWhite")) 40 50 (face (:background "NavajoWhite")) 50 64 (face (:foreground "NavajoWhite"))) #("wheat                    #f5f5dedeb3b3              " 0 25 (result "wheat") 25 40 (face (:foreground "wheat")) 40 50 (face (:background "wheat")) 50 52 (face (:foreground "wheat"))) #("DarkGoldenrod            #b8b886860b0b              dark goldenrod" 0 25 (result "DarkGoldenrod") 25 40 (face (:foreground "DarkGoldenrod")) 40 50 (face (:background "DarkGoldenrod")) 50 66 (face (:foreground "DarkGoldenrod"))) #("goldenrod                #dadaa5a52020              " 0 25 (result "goldenrod") 25 40 (face (:foreground "goldenrod")) 40 50 (face (:background "goldenrod")) 50 52 (face (:foreground "goldenrod"))) #("LightGoldenrod           #eeeedddd8282              light goldenrod" 0 25 (result "LightGoldenrod") 25 40 (face (:foreground "LightGoldenrod")) 40 50 (face (:background "LightGoldenrod")) 50 67 (face (:foreground "LightGoldenrod"))) #("PaleGoldenrod            #eeeee8e8aaaa              pale goldenrod" 0 25 (result "PaleGoldenrod") 25 40 (face (:foreground "PaleGoldenrod")) 40 50 (face (:background "PaleGoldenrod")) 50 66 (face (:foreground "PaleGoldenrod"))) ...) :require-match t :update-fn #[0 "\302�\303H	>\204�\304\305\306�D\"\210�\307H!\207" [ivy-last cl-struct-ivy-state-tags counsel-colors--update-highlight 0 signal wrong-type-argument ivy-state 23] 5] :action counsel-colors-action-insert-name :history counsel-colors-emacs-history :caller counsel-colors-emacs :sort nil)
  counsel-colors-emacs()
  funcall-interactively(counsel-colors-emacs)
  call-interactively(counsel-colors-emacs nil nil)
  command-execute(counsel-colors-emacs)

I'm not going to reopen this issue, because the bug isn't there with a fresh .emacs.d, But it would be nice if you had a hint for me.

[abo-abo]

Looks like you have "000000" registered as a color, although the proper name for it is "#000000".

(color-name-to-rgb "000000")
;; => nil
(color-name-to-rgb "#000000")
;; =>
;; (0.0 0.0 0.0)

Look through your init to find the code that registers "000000" as a color.

I can add a work-around that returns the same color in case there is an error.

[Dickby]

Thanks.

[Dickby]

Looking in this problem again, I found a few things:

counsel-color--name-to-hex returns 12-digit colors.
Because of that, counsel-colors--update-highlight picks the wrong substring.
color-rgb-to-hex has an optional argument to choose the number of hex-digits per color.
This could be used to fix the problem:

(defun counsel-colors--name-to-hex (color)
  (let ((rgb (color-name-to-rgb color)))
    (color-rgb-to-hex (nth 0 rgb) (nth 1 rgb)(nth 2 rgb) 2)))

Another problem is the foreground color of ivy-current-match in counsel-colors-emacs:

for choosing this foreground color counsel-colors--update-highlight uses
counsel-colors--best-contrast-color which returns "#FFFFFF" or "#000000" depending on the background color, to keep the text readable.

This returned color only works if the initial foreground-color of ivy-current-match is set to nil.
Otherwise the foreground color doesn't change.

[basil-conto]

@Dickby Can you please check whether #1436 fixes the issue for you?

[Dickby]

Is not fixed on my emacs.

[basil-conto]

@Dickby Please provide more information; your message doesn't give much to work with.