Build Error in condition based .csproj file in .net5.0 for Linux and Windows

Question

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup> 
    <OutputType>Exe</OutputType> 
    <TargetFramework>net5.0</TargetFramework> 
    <IsWindows Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">true</IsWindows> 
    <IsOSX Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' == 'true'">true</IsOSX> 
    <IsLinux Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' == 'true'">true</IsLinux> 
  </PropertyGroup>

  <PropertyGroup  Condition="'$(IsWindows)'=='true'">
    <TargetFramework>net5.0</TargetFramework>
    <Nullable>warnings</Nullable>
    <Product>TestClient</Product>
    <Authors>Me</Authors>
    <Company>MyCompany</Company>
  </PropertyGroup>

  <PropertyGroup Condition="'$(IsLinux)'=='true'">
    <OutputType>Exe</OutputType>
    <TargetFramework>net5.0</TargetFramework>
    <RootNamespace>TestClient</RootNamespace>
    <RuntimeIdentifier>linux-x64</RuntimeIdentifier>
  </PropertyGroup>

  <PropertyGroup Condition="'$(IsLinux)'=='true'">
    <PackagePrefix>TestClient</PackagePrefix>
    <PackageName>TestClient_1.0.5</PackageName>
    <Version>1.0.5</Version>
    <Authors></Authors>
    <Company>MyCompany</Company>
    <SelfContained>True</SelfContained>
  </PropertyGroup>

  <ItemGroup  Condition="'$(IsLinux)'=='true'">
      <Content Include="/home/abc/Repo/TestClient/Deb_Installer/TestClient.desktop" CopyToPublishDirectory="PreserveNewest" LinuxFileMode="1755">
      <LinuxPath>/usr/share/applications/TestClient.desktop</LinuxPath>
      </Content> 
      <Content Include="/home/abc/Repo/TestClient/Deb_Installer/TestClient.png" CopyToPublishDirectory="PreserveNewest" LinuxFileMode="1755"/> 
      <Content Include="/home/abc/Repo/TestClient/TestClient/bin/Desktop/linux-unpacked/**" CopyToPublishDirectory="PreserveNewest" LinuxFileMode="1755"/> 
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="ElectronNET.API" Version="13.5.1">
    </PackageReference>
  </ItemGroup>
  
  <ItemGroup>
    <ProjectReference Include="..\TestClient.Common\TestClient.Common.csproj" />
    <ProjectReference Include="..\TestClient.DB\TestClient.DB.csproj" />
  </ItemGroup>

</Project>

and on building, facing this Error

/usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: The "GenerateBundle" task failed unexpectedly. [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: System.ArgumentException: Invalid input specification: Found multiple entries with the same BundleRelativePath [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.HostModel.Bundle.Bundler.GenerateBundle(IReadOnlyList`1 fileSpecs) [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.GenerateBundle.ExecuteCore() [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.TaskBase.Execute() [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [/home/abc/Repo/TestClient/TestClient/TestClient.csproj] /usr/share/dotnet/sdk/5.0.405/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [/home/abc/Repo/TestClient/TestClient/TestClient.csproj]

Error occurred during dotnet publish: 1