Can't build .NET 7 android projects

[mrhenkiz]

Android application type

.NET Android (net7.0-android, etc.)

Affected platform version

VS 2022 17.5.3, .NET SDK 7.0.200, osx.13-arm64, Mono 6.12.0.188

Description

Can't build .NET 7.0 android project, newly created from template in visual studio. If i change to .net6.0-android however, it will build.

Csproj:

<Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFramework>net7.0-android</TargetFramework> <SupportedOSPlatformVersion>23</SupportedOSPlatformVersion> <OutputType>Exe</OutputType> <Nullable>enable</Nullable> <ImplicitUsings>enable</ImplicitUsings> <ApplicationId>com.companyname.AndroidApp1</ApplicationId> <ApplicationVersion>1</ApplicationVersion> <ApplicationDisplayVersion>1.0</ApplicationDisplayVersion> <TargetFrameworkVersion>v11.0</TargetFrameworkVersion> </PropertyGroup>

My system:

.NET SDK:
Version: 7.0.202
Commit: 6c74320bc3

Runtime Environment:
OS Name: Mac OS X
OS Version: 13.3
OS Platform: Darwin
RID: osx.13-arm64
Base Path: /usr/local/share/dotnet/sdk/7.0.202/

Host:
Version: 7.0.4
Architecture: arm64
Commit: 0a396acafe

.NET SDKs installed:
6.0.407 [/usr/local/share/dotnet/sdk]
7.0.202 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.15 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.4 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.15 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.4 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
x64 [/usr/local/share/dotnet/x64]
registered at [/etc/dotnet/install_location_x64]

Environment variables:
Not set

global.json file:
Not found

Workloads:

Installed Workload Id Manifest Version Installation Source

wasm-tools 7.0.4/7.0.100 SDK 7.0.200
macos 13.1.1040/7.0.100 SDK 7.0.200
maui-maccatalyst 7.0.59/7.0.100 SDK 7.0.200
maui-ios 7.0.59/7.0.100 SDK 7.0.200
maui-android 7.0.59/7.0.100 SDK 7.0.200
tvos 16.1.1537/7.0.100 SDK 7.0.200
android 33.0.26/7.0.100 SDK 7.0.200

Steps to Reproduce

• Install android workload
• Create .NET android project from visual studio template
• • Build solution (either via visual studio or command line)

Did you find any workaround?

No

Relevant log output

Xamarin.Android.Common.targets(3,3): Error XA3006: Could not compile native assembly file: environment.arm64-v8a.ll

stderr | /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: error: /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: environment.arm64-v8a.ll:554:7: error: expected value token
stderr |                 i32 −1, ; apk_fd

(XA3006) (AndroidApp1)

Xamarin.Android.Common.targets(1979, 3): [XA3006] Could not compile native assembly file: environment.x86.ll
stderr | /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: error: /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: environment.x86.ll:593:7: error: expected value token
stderr |                 i32 −1, ; apk_fd


Xamarin.Android.Common.targets(1979, 3): [XA3006] Could not compile native assembly file: environment.armeabi-v7a.ll
stderr | /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: error: /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: environment.armeabi-v7a.ll:593:7: error: expected value token
stderr |                 i32 −1, ; apk_fd


Xamarin.Android.Common.targets(1979, 3): [XA3006] Could not compile native assembly file: environment.x86_64.ll
stderr | /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: error: /usr/local/share/dotnet/packs/Microsoft.Android.Sdk.Darwin/33.0.26/tools/Darwin/binutils/bin/llc: environment.x86_64.ll:593:7: error: expected value token
stderr |                 i32 −1, ; apk_fd

[dellis1972]

@grendello any ideas on this one?

[grendello]

This code is generated when assembly stores are disabled ($(AndroidUseAssemblyStore)=False), but I've just tested it locally and it builds fine with XA/main. @mrhenkiz can you please attach the whole project directory after build (that is with bin, obj, sources etc)?

[grendello]

Fragment of code generated locally when assembly stores are disabled:

; Bundled assembly name buffers, all 70 bytes long
@bundled_assemblies = local_unnamed_addr global [154 x %struct.XamarinAndroidBundledAssembly] [
        ; 0
        %struct.XamarinAndroidBundledAssembly {
                i32 -1, ; apk_fd
                i32 0, ; data_offset
                i32 0, ; data_size
                i8* null, ; data
                i32 70, ; name_length
                i8* getelementptr inbounds ([70 x i8], [70 x i8]* @__XamarinAndroidBundledAssembly_name_0, i32 0, i32 0); name
        }, 

It's an array of such entries, the fragment in the error message in OP isn't sufficient to say what llc doesn't like.

[mrhenkiz]

@grendello Thanks for the quick response. The zipfile is 26mb and I'm only allowed to upload 25mb. Is there any folders that i can skip to make the file smaller ?

EDIT: Uploaded it to file.io
Link

[grendello]

I can confirm that the ll files in the provided sample fail to build, even though the code between my local test and them is nearly identical (the only difference is buffer size):

Local:

; Bundled assembly name buffers, all 70 bytes long
@bundled_assemblies = local_unnamed_addr global [154 x %struct.XamarinAndroidBundledAssembly] [
        ; 0
        %struct.XamarinAndroidBundledAssembly {
                i32 -1, ; apk_fd
                i32 0, ; data_offset
                i32 0, ; data_size
                i8* null, ; data
                i32 70, ; name_length
                i8* getelementptr inbounds ([70 x i8], [70 x i8]* @__XamarinAndroidBundledAssembly_name_0, i32 0, i32 0); name
        }, 

Example app:

; Bundled assembly name buffers, all 66 bytes long
@bundled_assemblies = local_unnamed_addr global [211 x %struct.XamarinAndroidBundledAssembly] [
        ; 0
        %struct.XamarinAndroidBundledAssembly {
                i32 −1, ; apk_fd
                i32 0, ; data_offset
                i32 0, ; data_size
                i8* null, ; data
                i32 66, ; name_length
                i8* getelementptr inbounds ([66 x i8], [66 x i8]* @__XamarinAndroidBundledAssembly_name_0, i32 0, i32 0); name
        }, 

Syntactically they're identical, so it must be something else in the file throwing llc off. Fascinating.

[grendello]

If I manually change -1 to 0 then it works. Baffling :)

[mrhenkiz]

@grendello I don't know if it helps. But the errors for environment is randomly between every build. Sometimes it only complains about ie. environment.arm64-v8a.ll and other builds it complains about one or more. :)

[grendello]

@mrhenkiz I suspect there's some earlier bit of code that is somehow corrupted (perhaps a filesystem issue, hard to tell). I'll investigate later today and will try to reproduce locally using your sample.

[mrhenkiz]

@grendello Great, thanks. I can also say that i get same errors on a wiped intel mac where I only installed vs 2022 17.5.3 and created a project from the template (same versions as on the M1) and built.