"signature" file not created

[ismail-wun-sg]

I'm getting the following error...

Warning: file_get_contents(output\1234567890\signature): failed to open stream: No such file or directory in C:\xampp\htdocs\applepass\Passbook\PassFactory.php on line 316

In my "output\1234567890" folder, the following files are created...

• icon.png
• manifest.json
• pass.json

But there is no "signature" file.

This causes the code on line 316 in PassFactory.php to throw the error.

I'm on windows and how I generated the "AppleWWDRCA.pem" file is as follows...

openssl pkcs12 -export -out cert.p12 -inkey developer_identity.key -in developer_identity.pem -certfile AppleWWDRCA.pem

[ismail-wun-sg]

Ran the same code on a different machine and the "signature" file was created successfully.