An error occurred while signing: SignTool.exe not found

Question

While I was trying to Update my Project I was making - I got an error for the first time I\'ve seen:

\'An error occurred while signing: SignTool.exe n

Answer 1

I needed Signing hence couldn't un-check as suggested.

Then goto Control Panel -> Programs and Features -> Microsoft Visual Studio 2015 Click Change then the installer will load and you need to click Modify to add ClickOnce Publishing Tools feature.