Tag Archives: visualstudio

WCF on .Net 4.x ReST Service with IIS 7 or 8 = HTTP Error 404.17

So my newly created WCF ReST service (or webHttp service, as MS more accurately like to call it) runs fine in Visual Studio 2012, using IIS Express. But when I switch to IIS proper (in my case, IIS8 on Windows 8) I get:

HTTP Error 404.17 – Not Found
The requested content appears to be script and will not be served by the static file handler.

Most so-far extant posts on how to fix this, refer to how to fix it for .Net 3 on Windows before Win8: Use "%WINDIR%\Microsoft.Net\Framework\v3.5\Windows Communication Foundation\ServiceModelReg.exe" to register or to repair registration of WCF components. (The other gotcha being, having the right AppPool settings for .Net version & for 32 vs. 64 bit).
This doesn’t work for Windows 8 / .Net 4.X. Instead you must open the control panel “Turn Windows Features On or Off” and tick the box for Http activation:

Windows Features - Windows 8 - Net45 - WCF - Http Activation Tickbox

Windows Features – Windows 8 – Net45 – WCF – Http Activation

Which should fix the issue after a couple of minutes.

VS2010 Command Prompt Here on the Windows Explorer Right Click Menu — the .reg File

VS2010 Command Line Here for Explorer Right Click Menu

To add a Visual Studio 2010 Command Prompt Here to your Explorer Right-Click menu, save this as a .reg file to your desktop, and then run it:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2010]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2010\command]
@="cmd.exe /k echo on & pushd \"%1\" & \"C:\\Program Files\\Microsoft Visual Studio 10.0\\VC\\vcvarsall.bat\" x86"

If you have 64-bit Windows, you’ll need this:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2010]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2010\command]
@="cmd.exe /k echo on & pushd \"%1\" & \"C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\vcvarsall.bat\" x86"

Can’t open Asp.Net MVC2 project in Visual Studio 2010 – Microsoft.WebApplication.targets was not found

You try to open an MVC2 project that worked on a previous machine but won’t open on your new machine? The error message you get when you try to open the project is:

error MSB4019: The imported project “C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\WebApplications\Microsoft.WebApplication.targets” was not found. Confirm that the path in the declaration is correct, and that the file exists on disk.

Possibly your new machine has never had Visual Studio 2008 on it, whereas your old machine did. In which case the solutions is:

  1. Find a machine on which VS2008 has been installed
  2. Copy the contents of C:\Program Files\MSBuild\Microsoft\VisualStudio\v9.0\WebApplications to your new machine



NUnit Constraints Example – a Simple Custom Constraint

Are you short of an NUnit Assertion? You have some code for a test, but you really want it in NUnit constraint form so you can use it like any other test. They are easy to write. Here’s an example which wraps a function you already wrote as a Constraint:

public class EqualsByValueConstraint : Constraint
	private readonly object expected;
	private CompareResult compareResult;

	public EqualsByValueConstraint(object expected)
		this.expected = expected;

	public override bool Matches(object actual)
		this.actual = actual;
		compareResult = EqualsByValueOrFailureReason(actual, expected);
		return compareResult;

	public override void WriteDescriptionTo(MessageWriter writer)
	public override void WriteActualValueTo(MessageWriter writer)
		writer.WriteMessageLine("Compare Result " + compareResult);
public class CompareResult
	public bool IsPass {get;set;}
	public string FailureDescription {get; set;}

If your function is just a boolean, then you could remove the CompareResult class. The drawback being that your failure message will only say ‘failed’ rather than give an explanation of the failure. In that case, you might just as well not use the constraint and use the Assert.That(bool, message) overload.

dotCover config file for command line NUnit test coverage

So you want to produce a coverage report for your .Net project, preferably from the command line? If you use dotCover and NUnit then this:

<?xml version="1.0" encoding="utf-8"?>
    <Executable><!-- Path to your NUnit bin directory e.g.  -->C:\Program Files\NUnit 2.5.10\bin\net-2.0\nunit-console.exe</Executable>
    <WorkingDir><!-- This path works for running dotCover with a config file in the project directory-->bin\Debug\</WorkingDir>
    <Arguments><!-- The dlls containing NUnit tests. Space delimited if more than one-->My.Tests.dll My.MoreTests.dll</Arguments>
    <Output><!-- Path to where I want the report. Can be relative or absolute -->My.Tests.Coverage.html</Output>
            <FilterEntry><!--  _ "Module" means project _ --><ModuleMask>*</ModuleMask></FilterEntry>
            <FilterEntry><!--  _ "Module" means project _ --><ModuleMask>My.Tests</ModuleMask></FilterEntry>
            <FilterEntry><!-- namespaces can be filter with a ClassMask with * wildcard --><ClassMask>Namespaces.For.AutogeneratedCode.*</ClassMask></FilterEntry>

will allow you, from the command line, to type:

dotCover analyse MyConfigFileName.xml

and generate coverage reports. Assuming that dotCover is in your path of course.
I like to set the filters to exclude coverge report on the test project itself as well as autogenerated code.

Covering Multiple Test Projects In One Run

  • Set your working directory to be a parent of all the test projects, e.g. the solution directory.
  • List the full relative paths to each Test dll, space limited:
    <Arguments>Web.Tests\bin\Debug\MyProject.Web.Tests.dll Implementation.Tests\bin\Debug\MyProject.Implementation.Tests.dll</Arguments>

Filtering and more advanced coverage configs

  • Look down the right hand side of the page here : http://www.jetbrains.com/dotcover/documentation/index.html for documentation, such as it is.
  • Filtering is covered here: http://blogs.jetbrains.com/dotnet/2010/07/filtering-with-dotcover/
  • More complex stuff is touched on here: http://blogs.jetbrains.com/dotnet/tag/code-coverage/