CODEWITHSUNDEEP
f#f#-fakef#-fake-5
GKalnytskyi
GKalnytskyi

Reputation: 629

F# Fake globbing operator and MSBuild

I'm learning Fake 5 (F# Make) and I'm going through the Getting Started tutorial. When I run the following code I receive an error message : tryscript.fsx (6,7)-(6,54): Error FS0001: The type 'Fake.IO.IGlobbingPattern' is not compatible with the type 'seq<'a>'

#r "paket: nuget Fake.IO.FileSystem //"
open Fake.IO.Globbing.Operators
let csProjectFiles = !! "src/app/**/*.csproj"

csProjectFiles
    |> Seq.iter (fun x -> printfn "ProjectFile: %s" x)

// for projectFile in csProjectFiles do
//     printfn "F# ProjectFile: %s" projectFile

But if I comment out two lines starting at csProjectFiles |> ... and uncomment the last two lines I will get the expected output of file names. According to documentation and Ionide tooltips the !! should return a sequence of file names. Can someone advise me what I might be doing wrong?

P.S. I'm using Fake 5.3.1 installed using dotnet tool install fake-cli -g

UPD. I don't have any solution for this issue. It resolved itself after Windows 10 got an update and I removed Nuget package caches in %HOMEPATH\.nuget, %HOMEPATH%\AppData\Local\Nuget, and deleted .fake folder and lock file in the same folder as FAKE script and then reran script again.

If you are still facing similar issue developers ask for extended log fake -vv run <yourScriptName>.fsx after you clear all the caches, and archived contents of %HOMEPATH%\.nuget\packages\netstandard.library after this run.

Upvotes: 2

Views: 288

Answers (1)

matthid
matthid

Reputation: 1704

Just for completeness sake, the reported issue can be found here: https://github.com/fsharp/FAKE/issues/2062

If anyone encounters this issue please open a new issue (and link the old one) and provide the following information:

Can you clean everything and send the output of fake -vv run tryscript.fsx and attach the logfile? Something is indeed fishy with the NetStandard.Library package

Can you also compress and attach the folder C:\Users\.nuget\packages\netstandard.library and then try to delete it (and again create a logfile for that)?

I'd assume this was either a caching issue or an F# compiler bug or both.

Upvotes: 1

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