XamlParseException: Could not load file or assembly 'ResourceLibrary, …' or one of its dependencies. The system cannot find the file specified

Issue

System.Windows.Markup.XamlParseExceptionoccurred

A first chance exception of type 'System.Windows.Markup.XamlParseException' occurred in PresentationFramework.dll

Additional information: 'Set property 'System.Windows.ResourceDictionary.Source' threw an exception.' Line number '21' and line position '6'.

"Could not load file or assembly 'ResourceLibrary, Culture=neutral' or one of its dependencies. The system cannot find the file specified.":"ResourceLibrary, Culture=neutral"

=== Pre-bind state information ===
LOG: DisplayName = ResourceLibrary, Culture=neutral
 (Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: ResourceLibrary, Culture=neutral | Domain ID: 2
WRN: A partial bind occurs when only part of the assembly display name is provided.
WRN: This might result in the binder loading an incorrect assembly.
WRN: It is recommended to provide a fully specified textual identity for the assembly,
WRN: that consists of the simple name, version, culture, and public key token.
WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue.
LOG: Appbase = file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug
LOG: Initial PrivatePath = NULL
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\QTAgent32.exe.Config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PublicAssemblies/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PublicAssemblies/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/x86/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/x86/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/x86/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/x86/ResourceLibrary/ResourceLibrary.DLL.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PublicAssemblies/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PublicAssemblies/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/x86/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/DataCollectors/x86/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/ResourceLibrary/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/x86/ResourceLibrary.EXE.
LOG: Attempting download of new URL file:///C:/Users/me/Documents/projects/Autom/git/Autom/VisCong/VisConf_Tests/bin/Debug/PrivateAssemblies/DataCollectors/x86/ResourceLibrary/ResourceLibrary.EXE.

Solution

This question is just a reference to myself and to whomever gets here while searching for a solution to this issue.

The Copy Local in the reference was set to True but the DLL was not copied to the build folder.

Since I used this resource library only in XAML, I had to add a using statement:

using ResourceLibrary;

in the referencing code (actually, the code that called the referencing code, which was either the app or the unit-test)

This made the DLL created in the destination build directory.

Edit:

Sometimes even using ResourceLibrary doesn’t work. The solution is creating some empty static method in the code-behind of the ResourceLibrary:

namespace ResourceLibrary {
    public static class ReferencePoint {
        public static ReferToMe() {}
    }
}

And calling it from the referencing code:

ReferencePoint.ReferToMe();

Answered By – Tar

Answer Checked By – Mary Flores (AngularFixing Volunteer)

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