I get a failure when trying to archive as a zip

Can you help me figure out what's going on?
> react-imago@0.1.0 archive /Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago
> create-cep-extension-scripts archive

Signing and archiving...

Error: Command failed: "/Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/node_modules/zxp-provider/bin/osx/ZXPSignCmd" -sign /Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/build /Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/archive/My-CEP-Extension-0.1.0.zxp certificate.p12 certificate-password 
Usage:
    ZXPSignCmd -sign <inputDirectory> <outputZxp> <p12> <p12Password> [options]
    options:
        -tsa <timestampURL> - will attempt to timestamp the ZXP using supplied timestamp server. For example, https://timestamp.geotrust.com/tsa

    ZXPSignCmd -sign <inputDirectory> <outputZxp> -s <identity> [options]
    options:
        -keychain <filename> - identity is only looked-for in the specific keychain given

        -tsa <timestampURL> - will attempt to timestamp the ZXP using supplied timestamp server. For example, https://timestamp.geotrust.com/tsa

    ZXPSignCmd -verify <zxp>|<extensionRootDirectory> [options]
    options:
        -certInfo - will print out information about certificates (including timestamp and certificate revocation information)
        -skipOnlineRevocationChecks - will skip online checks for certificate revocation (certificate revocation checks only happen with -certInfo flag set)
        -addCerts <certificate1> <certificate2>... - will verify certificate chain and assess whether or not DER encoded certificates passed in are included

    ZXPSignCmd -selfSignedCert <countryCode> <stateOrProvince> <organization> <commonName> <password> <outputPath.p12> [options]
    options: 
        -locality <locality> -orgUnit <orgUnit> -email <email> -validityDays <validityDays> - are optional attributes for self-signed p12 certificates

    at ChildProcess.exithandler (child_process.js:303:12)
    at ChildProcess.emit (events.js:315:20)
    at maybeClose (internal/child_process.js:1021:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5) {
  killed: false,
  code: 3,
  signal: null,
  cmd: '"/Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/node_modules/zxp-provider/bin/osx/ZXPSignCmd" -sign /Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/build /Users/bnick/Library/Application Support/Adobe/CEP/extensions/react-imago/archive/My-CEP-Extension-0.1.0.zxp certificate.p12 certificate-password '
}
fusepilot / create-cep-extension

I get a failure when trying to archive as a zip #59
