First attempt to code sign failed another attempt will be made in 15 seconds Exit code 1 Command failed CUsersliuzhengquanAppDataLocalelectron-builderCachewinCodeSignwinCodeSign-260windows-10x64signto

The error message suggests that the code signing process failed due to the file being used by another process. This could be caused by the file being open in another application or by an antivirus program scanning the file. To resolve the issue, try closing any applications that may be using the file and temporarily disabling any antivirus programs. Then, attempt to code sign the file again.