MSBuild command-line error - Silverlight 4 SDK is not installed

Question

My MSBuild command line is as follows:

msbuild e:\code\myProject.csproj /p:Configuration=Debug /p:OutputPath=bin/Debug /p:Platform=x86 /p:PlatformTarget=x86

The project builds fine on my development machine in VS2010 but not with the command above. I am running Win 7 64 - Bit. I'm getting an error that says I don't have the Silverlight 4 SDK installed but I do. I"ve read some posts that you have to set the Platform=x86 but to no avail. Here is the error message in full:

Microsoft (R) Build Engine Version 4.0.30319.1
[Microsoft .NET Framework, Version 4.0.30319.1]
Copyright (C) Microsoft Corporation 2007. All rights reserved.

Build started 6/8/2010 4:03:38 PM.
Project "E:\code\dashboards\MyProject2010\MyProject2010.Web\MyProject2010
.web.csproj" on node 1 (default targets).
GenerateTargetFrameworkMonikerAttribute:
Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output fi
les are up-to-date with respect to the input files.
CoreCompile:
Skipping target "CoreCompile" because all output files are up-to-date with resp
ect to the input files.
CopyFilesToOutputDirectory:
  Copying file from "obj\Debug\MyProject.Web.dll" to "bin\Debug\MyProject.Web
  .dll".
  MyProject2010.web -> E:\code\dashboards\MyProject2010\MyProject2010.Web
  \bin\Debug\MyProject.Web.dll
  Copying file from "obj\Debug\MyProject.Web.pdb" to "bin\Debug\MyProject.Web
  .pdb".
Project "E:\code\dashboards\MyProject2010\MyProject2010.Web\MyProject2010
.web.csproj" (1) is building "E:\code\dashboards\MyProject2010\MyProject20
10.Client\MyProject2010.Client.csproj" (2) on node 1 (GetXapOutputFile target(
s)).
C:\Program Files (x86)\MSBuild\Microsoft\Silverlight\v4.0\Microsoft.Silverlight
.Common.targets(104,9): error : The Silverlight 4 SDK is not installed. [E:\cod
e\dashboards\MyProject2010\MyProject2010.Client\MyProject2010.Client.cspr
oj]
Done Building Project "E:\code\dashboards\MyProject2010\MyProject2010.Clie
nt\MyProject2010.Client.csproj" (GetXapOutputFile target(s)) -- FAILED.

Done Building Project "E:\code\dashboards\MyProject2010\MyProject2010.Web\
MyProject2010.web.csproj" (default targets) -- FAILED.


Build FAILED.

"E:\code\dashboards\MyProject2010\MyProject2010.Web\MyProject2010.web.csp
roj" (default target) (1) ->
"E:\code\dashboards\MyProject2010\MyProject2010.Client\MyProject2010.Clie
nt.csproj" (GetXapOutputFile target) (2) ->
(GetFrameworkPaths target) ->
  C:\Program Files (x86)\MSBuild\Microsoft\Silverlight\v4.0\Microsoft.Silverlig
ht.Common.targets(104,9): error : The Silverlight 4 SDK is not installed. [E:\c
ode\dashboards\MyProject2010\MyProject2010.Client\MyProject2010.Client.cs
proj]

    0 Warning(s)
    1 Error(s)

Time Elapsed 00:00:00.39

I appreciate anyone's help. Thanks.

Answer 1

I figured this out - there is a setting in MSBuild where you can choose x64 or x86 environment for MSBuild (in the same page where you set MSBuild flags) - set it to x86 and everything will work.

Answer 2

If you have arrived here due to an issue with tfs2010 builds causing the above error (even though you have installed the Silverlight 4 SDK), then in order to achieve the same fix you must edit your Build Process template:

Go to the the "Process" tab, expand the "3.Advanced" section and locate the second from bottom setting ("MSBuild Platform") and set this to X86 which will then instruct the build agent to use the x86 variant of MSBuild.

This solved my problem in conjunction with Paul Betts' answer above.

Answer 3

I've encountered the same problem when running: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe

Simply run:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe