[Haskell-cafe] error when running stack

[Henning Thielemann]

On Sat, 24 Oct 2020, Dennis Raddle wrote:

> I get this error when running stack:
> 
> Downloading lts- xxxx building plan
> aesonException "Error in $['system-info']: key \"os\" not present"
> 
> running "stack update" didn't help.
> I'm very confused because I don't remember what I did that provoked this error.
> Anyone know what's going on?

aesonException and the error message suggest an error in a JSON file ...