27 Jun
2016
27 Jun
'16
5:59 p.m.
Hi Simon,
3. After this step, starting a shell failed altogether with "c:/msys64/mingw64_shell.bat is not recognised as an internal or external command". And sure enough, there is no such file. Presumably it existed in step 1. So perhaps step 2 deleted it? [...] 4. As you mention, I then tried msys2_shell.cmd. It worked -- with a noticeable delay of 5 seconds or so.
I've also just got a new Win10 laptop and had the same issue with missing mingw64_shell.bat during msys2 install. I solved it by creating mingw64.bat with the following contents: msys2_shell.cmd -mingw64 -mintty I deleted all old shortcuts and use this script instead. Everything seems to work fine -- can build GHC. Cheers, Andrey