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

I cannot build projects with a strong name key signing - the message in the title always comes up.

Yes the project was initially copied over from another machine. However even if I add a new key via the Signing tab in Project Properties, this error is still shown.

I have tried running Visual Studio as an Administrator and have tried manually adding the keys to Windows Certificate Store.

Help!

Edit: I don't get this error with a new project, but I'd quite like to get this existing project working. It won't work even if I create a new certificate!

Solution 1:

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>
   

Solution 2:

Go to your project's "Properties" within visual studio. Then go to signing tab.

Then make sure Sign the Click Once manifests is turned off.

Updated Instructions:

Within your Solution Explorer:

1. right click on your project
2. click on properties
3. usually on the left-hand side, select the "Signing" tab
4. check off the Sign the ClickOnce manifests
5. Make sure you save!

Solution 3:

It's simple!!

I resolved this problem by following this steps:

1. Open project properties
2. Click on Signing Tab
3. And uncheck "Sign the assembly"

That's it!!

Solution 4:

1. Open the .csproj file in Notepad.

2. Delete the following information related to signing certificate in the certificate store

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

Solution 5:

Try this: Right click on your project -> Go to properties -> Click signing which is left side of the screen -> Uncheck the Sign the click once manifests -> Save & Build