Bug 28914 - Mono's Visual Basic targets references a non-exist Microsoft.Build.Tasks.
Summary: Mono's Visual Basic targets references a non-exist Microsoft.Build.Tasks.
Status: NEW
Alias: None
Product: Tools
Classification: Mono
Component: xbuild ()
Version: unspecified
Hardware: All All
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-04-09 00:04 UTC by Cunzhen WANG
Modified: 2015-04-09 00:32 UTC (History)
1 user (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
NEW

Description Cunzhen WANG 2015-04-09 00:04:20 UTC
The Visual Basic targets definition at $PREFIX/lib/mono/4.5/Microsoft.VisualBasic.targets (On my mac PREFIX was /Library/Frameworks/Mono.framework/Versions/4.0.0) appears to reference a non-exist assembly called Microsoft.Build.Tasks on Line 2:

-        <UsingTask TaskName="Microsoft.Build.Tasks.CreateVisualBasicManifestResourceName" AssemblyName="Microsoft.Build.Tasks, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
+        <UsingTask TaskName="Microsoft.Build.Tasks.CreateVisualBasicManifestResourceName" AssemblyName="Microsoft.Build.Tasks.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>

And when I ran `xbuild` in QuickVB source dir (Well, the same as in https://bugzilla.xamarin.com/show_bug.cgi?id=28912), the original unchanged one reported that CreateVisualBasicManifestResourceName failed because it couldn't find Microsoft.Build.Tasks, while using Microsoft.Build.Tasks.v4.0 instead does solve the problem.

I was still unable to build since Microsoft.Build.Tasks.v4.0.Vbc appears to be FAILED in xbuild. The assembly browser gave me a lot of [MonoTODO]s so it looks like part of another bug or so.
Comment 1 Cunzhen WANG 2015-04-09 00:32:18 UTC
Well it seems to be a 4.0-alpha-specific problem. In my 3.8.0 prefix I got:

> Error executing task Vbc: Argument cannot be null.

with the actually existing Microsoft.Build.Tasks.dll. The output is identical to what was reported in bug #24461.