message: Assure blueprint challenge file is uniquely configured
diff: @@ -651,6 +651,10 @@ function createProducts () {
  } else if (product.useForProductTamperingChallenge) {
  description += ' <a href="https://www.owasp.org/index.php/O-Saft" target="_blank">More...</a>'
  } else if (product.fileForRetrieveBlueprintChallenge) {
  + if (datacache.retrieveBlueprintChallengeFile) {
  + console.error('Cannot use ' + product.fileForRetrieveBlueprintChallenge + ' when ' + datacache.retrieveBlueprintChallengeFile + ' is already being used for the Retrieve Blueprint Challenge.')
  + process.exit(1)
  + }
  let blueprint = product.fileForRetrieveBlueprintChallenge
  if (utils.startsWith(blueprint, 'http')) {
  const blueprintUrl = blueprint
  