I had the same error after upgrading to Windows 10. Uninstall Julia and afterwards go into file explorer and physically delete the .Julia folder and all its contents. I also deleted the .julia_history file. Next reinstall Julia and you should be good to go...Arch
On Friday, July 31, 2015 at 7:04:33 PM UTC-4, Serge Santos wrote: > The output is "C:\\Users\\Serge\\.Julia\\v0.3" > > ENV["HOME"] gave me an error message (ERROR: key not found: "HOME" in > getindex at env.jl:57) > > On Friday, 31 July 2015 23:18:17 UTC+1, Isaiah wrote: > >> What is the output of (in the REPL only, not Juno): >> Pkg.dir() >> ENV["HOME"] >> >> >> On Fri, Jul 31, 2015 at 3:52 PM, Serge Santos <[email protected]> >> wrote: >> >>> Hello, >>> >>> I am fairly new to Julia, but it has already been a fantastic help for >>> my work so far. I just upgraded to Windows 10 and installed Julia and Juno. >>> Unfortunately Juno couldn't connect with Julia. I got the error message: >>> >>> Couldn't connect to Julia >>> >>> INFO: Couldn't find Jewel package, attempting installation... >>> >>> ----------------------------------------------- >>> >>> We couldn't install Jewel.jl for you. >>> >>> Try using Pkg.add("Jewel") in a Julia repl. >>> >>> ----------------------------------------------- >>> >>> ERROR: unable to read directory METADATA: No error >>> >>> in systemerror at error.jl:39 (repeats 2 times) >>> >>> while loading >>> C:\Users\Serge\AppData\Local\juno-windows-x64\resources\app\plugins\Julia-LT\jl\init.jl, >>> >>> in expression starting on line 33 >>> >>> >>> I also tried Pkg.update() directly in REPL of Julia. I got the following >>> error message: >>> >>> >>> Julia> Pkg.update() >>> >>> INFO: Updating METADATA… >>> >>> ERROR: chdir METADATA: no such file or directory <ENOENT> >>> >>> In cd at file.jl:11 (repeat 2 times) >>> >>> >>> Any ideas what is going wrong? >>> >> >>
