failed to lock file

[Et7f3]

OS Microsoft Windows 10 Familly
Version 10.0.17134 Number 17134
Node.js 10.15.3 (x64) and npm
esy 0.5.8
Welcome to utop version 2.4.0 (using OCaml version 4.08.0)!

step to reporduce:

• Open Node.js command prompt as a administrator.
• Navigate with cd to esy.sh project (a folder with a package.json that can be generated by npm -init
• esy add @esy-ocaml/utop
• esy b utop

just after the the header is displayed I get this message:

utop.exe: lambda-term(history): failed to lock file 'C:\Users\root\AppData\Roaming\npm\node_modules\esy\node_modules\esy-bash\.cygwin\usr\esy\.utop-history': Une opération de verrouillage de fichier demandée ne peut pas être traitée en raison d’une plage d’octets non valide.
utop.exe: lambda-term(history):

I haven't opened a issue in utop because I see lambda-term.
Feel free to ask more information or ask me to test some other command.

[pmetzger]

Can you find a simpler way to reproduce this? I don't think any of the maintainers are in a position to try that out. (I personally have no windows machine and never touch esy.)

[DrYSG]

I am also getting the same error. all I do is #use CommandLiner and then #use <myfile.ml> similar config

[tonykipkemboi]

Was this ever resolved? I am still getting the same error message:

utop.exe: lambda-term(history): failed to lock file 'C:\OCaml64\home\tonyk\.utop-history': A requested file lock operation cannot be processed due to an invalid byte range.
utop.exe: lambda-term(history):

[pmetzger]

It was never resolved, I think because none of the maintainers are using node.js, esy, or Windows. It will be necessary for someone who is using those tools together to try to track down what has gone wrong and to supply a patch.