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I install and run PWgui-6.2 in cygwin, and get this message "couldn't load file "/usr/bin/tk86.dll": No such file or directory while executing "load /usr/bin/tk86.dll Tk" ("package ifneeded Tk 8.6.8" script)".

I guess the package tk-8.6.8 is lacked in cygwin so I try to add this package. However I can't find out this package from repository. Could you help me to solve this problem?

user136110
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  • `/usr/bin/tk86.dll` is not the cygwin shared lib. It is instead `/usr/bin/libtk8.6.dll` contained in `tcl-tk` package – matzeri Jan 28 '18 at 21:11
  • actually, there is no 'bin' folder in 'usr' folder of cygwin. tcl-tk packages (tcl-tk, tcl-tk-debuginfo, tcl-tk-devel 8.6.8-1) were added to cygwin and I see that there are tcl8.6 and tk8.6 folders in cygwin/lib/. – user136110 Jan 29 '18 at 03:07
  • @user136110: What? Of course there is a /usr/bin, although /usr/bin is equivalent to /bin in a cygwin environment, – varro Jan 29 '18 at 03:23
  • There is usr folder in cygwin, and bin folder too. Therefore I think they are not equivalent. Anyway, there is libtk8.6.dll in cygwin/bin. what should I do now? – user136110 Jan 29 '18 at 03:58
  • No - /usr is not equivalent to /bin, but *within Cygwin*, /bin is equivalent to /usr/bin (it's done by essentially mounting /bin on /usr/bin). I know nothing about PWgui-6.2, but if it's complaining about a missing /usr/bin/tk86.dll, it sounds like it's not configured to run under Cygwin. How did you install it? – varro Jan 29 '18 at 17:39
  • I downloaded the file qe-6.2-PWgui.tar.gz from http://www.qe-forge.org, put it in C:\cygwin64\home\, in cygwin I entered into \home folder and then run command in cygwin: tar zxvf qe-6.2-PWgui.tar.gz, it maked the folder \home\PWgui-6.2, I entered the folder \PWgui-6.2 then run ./pwgui and received the messages . I want to say that I added packages as mentioned in http://www-k3.ijs.si/kokalj/pwgui/install.html "To use the source package you need required Tcl software, in particular Tcl + Tk + Itcl + Itk + Iwidgets". – user136110 Jan 30 '18 at 10:46
  • You say you "added packages as mentioned in www-k3.ijs.si/kokalj/pwgui/install.html"; but how did you add them - via Cygwin or via some other means? You keep referring to paths using Window style path names rather than Cygwin-style pathnames; are you actually *using* Cygwin? or just putting code under a Cygwin-owned directory? (Normally you wouldn't be putting anything under C:\cygwin64\home\ but under /home/.) – varro Jan 30 '18 at 17:38
  • I run Cygwin setup file to add packages, that is unique way to update packages to cygwin as I know. – user136110 Jan 31 '18 at 11:24

2 Answers2

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The answer is here: Cannot launch git gui using cygwin on windows, and this is essentially a duplicate question. The problem is that gitk and git gui require X11 in Cygwin.

Solution

Install some of the Cygwin X11 packages:

  • Run the Cygwin installer again.
  • Install "xinit" under the X11 category, accepting all the dependencies.
    • (Windows Start menu should now include: Cygwin-X)
  • Start menu > run XWin Server

  • In Cygwin shell, run

    export DISPLAY=:0.0

  • At this point I got "Authorization required, but no authorization protocol specified", so to fix that set

    enable_xauth=0 in \bin\startxwin

(Note:)

Will need to run XWin Server every time you reboot, and set export DISPLAY=:0.0 every time you open a new Cygwin shell. (Run echo "export DISPLAY=:0.0" >>~/.profile to have it run automatically whenever a new shell is started).

If you get couldn't connect to display ":0.0", mouse over the X that should be in Windows taskbar tray, the pop-up should say something like Cygwin/X Server:1.0. Use that ":1.0" (or similar) instead as the value for export DISPLAY.

TT--
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  • I have cygwin in `--non-admin`. Therefore, I did not have CygwinX in Windows start menu. However, I can use `startxwin` command to start the server. many thanks for this explanation. – Jitendra Jan 13 '19 at 04:12
  • This was quite helpful. Thanks I was searching for the issue, but no answer was fixing my issue. finally installing xinit did the job. save my day. – sachyy Nov 11 '20 at 05:25
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Install windows Git. Uninstall git from cygwin repo. Set the environment Path for Git "C:\Program Files\Git\cmd" and move it above C:\cygwin64\bin

SSP
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