This application has failed to start because the application configuration is incorrect

I have a WPF application, and I’m getting the error message below upon adding the library.

• Removing the library makes it work again
• Compared the solution directories before and after the install. Literally the only difference are in packages.config and myProject.csproj which I provided below. I also added "additional few lines hoping that may give you a clue.

This application has failed to start because the application configuration is incorrect. Review the manifest file for possible errors. Reinstalling the application may fix this problem. For more details, please see the application event log.

packages.config

  <package id="LibGit2Sharp" version="0.26.1" targetFramework="net472" />
  <package id="LibGit2Sharp.NativeBinaries" version="2.0.289" targetFramework="net472" />

myProject.csproj

<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <PlatformTarget>x64</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
    <Prefer32Bit>false</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup>
    <GenerateManifests>true</GenerateManifests>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="LibGit2Sharp, Version=0.26.0.0, Culture=neutral, PublicKeyToken=7cbde695407f0333, processorArchitecture=MSIL">
      <HintPath>..\..\packages\LibGit2Sharp.0.26.1\lib\net46\LibGit2Sharp.dll</HintPath>
    </Reference>
  </ItemGroup>
  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
    <Error Condition="!Exists('..\..\packages\LibGit2Sharp.NativeBinaries.2.0.289\build\net46\LibGit2Sharp.NativeBinaries.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\LibGit2Sharp.NativeBinaries.2.0.289\build\net46\LibGit2Sharp.NativeBinaries.props'))" />
  </Target>
  <Import Project="..\..\packages\LibGit2Sharp.NativeBinaries.2.0.289\build\net46\LibGit2Sharp.NativeBinaries.props" Condition="Exists('..\..\packages\LibGit2Sharp.NativeBinaries.2.0.289\build\net46\LibGit2Sharp.NativeBinaries.props')" />
</Project>

Event logs - SideBySide

Activation context generation failed for "C:\Source\github\myProject\src\MyApp\bin\Debug\MyApp.exe.Manifest".Error in manifest or policy file "C:\Source\github\myProject\src\MyApp\bin\Debug\MyApp.exe.Manifest" on line 1207. The value "lib\alpine.3.9-x64\native\..\libgit2-7ce88e6.so" of attribute "name" in element "urn:schemas-microsoft-com:asm.v1^file" is invalid.

Manifest file line 1207

  <file name="lib\alpine.3.9-x64\native\..\libgit2-7ce88e6.so" size="1328560">
    <hash>
      <dsig:Transforms>
        <dsig:Transform Algorithm="urn:schemas-microsoft-com:HashTransforms.Identity" />
      </dsig:Transforms>
      <dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha256" />
      <dsig:DigestValue>dB4Q60wN4VMMMXxILRlbKYEReOqrxvLr0+IXJaLy5HA=</dsig:DigestValue>
    </hash>
  </file>

[bording]

If for some reason you can’t just disable the manifest generation, adding the following to your project file should help:

  <Target Name="RemoveNonWindowsLibGit2SharpLibraries" BeforeTargets="_DeploymentComputeClickOnceManifestInfo">
    <ItemGroup>
      <ContentWithTargetPath Remove="@(ContentWithTargetPath)" Condition="'%(Extension)' == '.so'"/>
      <ContentWithTargetPath Remove="@(ContentWithTargetPath)" Condition="'%(Extension)' == '.dylib'"/>
      <ContentWithTargetPath Remove="@(ContentWithTargetPath)" Condition="'%(Filename)%(Extension)' == 'LibGit2Sharp.dll.config'"/>
    </ItemGroup>
  </Target>

The assumption here is that since you’re writing a WPF app, you don’t need any of the non-Windows files. Those are included by default to enable support for mono.

[abulhasanlakhani]

Thank you so much. This workaround helped me!