Could not load type 'Microsoft.FSharp.Linq.QueryBuilder' from assembly about tasky

[rachelblasucci]

Ah, good call on removing my path. I'd be meaning to do that. Thanks!

For the second, yes, this one was super tricky to resolve for me.
If neither updating MonoTouch to the latest version, nor using the FSharp.Core that comes in the latest version of Mono work, you might have to compile F#. Or, you can use a slightly different syntax in place of query:

    ctx.``[main].[tasks]``
        |> Seq.filter (fun t -> t.complete = 0L)
        |> Seq.map (fun t -> {Description=t.task; Complete=false})
        |> Seq.toList

Let me know how it goes!

[ajonno]

hi Rachel, uhf I still can’t seem to get it running w/ this particular type provider.

I’m running:
Macbook Pro 2.3 GHz Intel Core i7 ; 16Gb ram
Xam Studio 5.1 Build 479
mtouch 7.2.5.5 (87026b6)

(just for reference, the “Shallow” sample F# project works fine for me)

also tried switching from mono runtime 3.4 to 3.6.

I also inserted the code snippet below like so, in Data.fs but still got the same compile error.

let GetIncompleteTasks () =
ctx.[main].[tasks]
|> Seq.filter (fun t -> t.complete = 0L)
|> Seq.map (fun t -> {Description=t.task; Complete=false})
|> Seq.toList

From build log:
Building: Tasky (Debug | iPhoneSimulator)
Performing main compilation...
/Library/Frameworks/Mono.framework/Versions/3.4.0/bin/fsharpc --noframework --nologo
-r:"/Library/Frameworks/Mono.framework/Versions/3.4.0/lib/mono/2.0/mscorlib.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/FSharp.Core.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/Mono.Data.Sqlite.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/System.Data.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll"
-r:"/Developer/MonoTouch/usr/lib/mono/2.1/System.dll"
Build complete -- 1 error, 0 warnings

---------------------- Done ----------------------

Build: 1 error, 0 warnings

Is this sort of (type provider) problem typical w/ F# projects ? I’m absolute loving the language and have spent some solid time educating myself on it so far, however issues like this make me a bit ‘nervous’. For example is the tooling and API set for Xamarin projects not stable & ready for prod use ?

cheers
Angus

On 7 Jul 2014, at 1:26 pm, Rachel Reese [email protected] wrote:

Ah, good call on removing my path. I'd be meaning to do that. Thanks!

For the second, yes, this one was super tricky to resolve for me.
If neither updating MonoTouch to the latest version, nor using the FSharp.Core that comes in the latest version of Mono work, you might have to compile F#. Or, you can use a slightly different syntax in place of query:

ctx.``[main].[tasks]``
    |> Seq.filter (fun t -> t.complete = 0L)
    |> Seq.map (fun t -> {Description=t.task; Complete=false})
    |> Seq.toList

Let me know how it goes!

—
Reply to this email directly or view it on GitHub.

[7sharp9]

@rachelreese @ajonno I think this is caused from using an older version of FSharp.Core that was packaged in monotouch.

@rachelreese It may be worth comparing your version of monotouch with @ajonno 's

I have this working on my machine and Im using:

Xamarin.iOS
Version: 7.2.6.7 (Business Edition)
Hash: c19d551
Branch: 
Build date: 2014-06-26 18:49:51-0400

Shallow is working because it doesn't use Type Providers. Type providers require the type FSharp.Core.CompilerServices.TypeProviderAssemblyAttributeand Microsoft.FSharp.Linq.QueryBuilder which are not present in the older version of FSharp.core that was included with monotouch.

It may be worth moving to the Xamarin beta or alpha channels to get the newer version of monotouch, which I think will rectify this.

[ajonno]

i upgraded Xamarin Studio to alpha release and the Tasky app now compiles and runs ok. thanks for your help w/ this.

just to note - i also tried to run Tasky after changing preferences in Xam Studio to point to iOS 8 —> /Applications/Xcode6-Beta3.app . Tasky crashed with this log error :

2014-07-10 23:36:32.925 Tasky[14699:874415] *** Assertion failure in -[UIApplication applicationWillOrderInContext:forWindow:], /SourceCache/UIKit_Sim/UIKit-3262.1/UIApplication.m:10117

[7sharp9]

Does the C# version also do that?

[ajonno]

i just downloaded/tested the C# version ; it builds ok, but the iOS simulator didn't launch. seeing this error:

warning MT1201: Could not load the simulator: dlopen(/Applications/Xcode6-Beta3.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Library/PrivateFrameworks/DVTiPhoneSimulatorRemoteClient.framework/Versions/A/DVTiPhoneSimulatorRemoteClient, 1): image not found