“Unable to find manifest signing certificate in the certificate store” – even when add new key

I’ve finally found the solution.

1. Edit the .csproj file for the project in question.

2. Delete the following lines of code:

   <PropertyGroup>
      <ManifestCertificateThumbprint>...........</ManifestCertificateThumbprint>
   </PropertyGroup>
   <PropertyGroup>
      <ManifestKeyFile>xxxxxxxx.pfx</ManifestKeyFile>
   </PropertyGroup>
   <PropertyGroup>
      <GenerateManifests>true</GenerateManifests>
   </PropertyGroup>
   <PropertyGroup>
      <SignManifests>false</SignManifests>
   </PropertyGroup>