How to use the ern-core.AppVersionDescriptor.fromString function in ern-core

'You cannot CodePush to a non existing native application version.',
      },
      sameNativeApplicationAndPlatform: {
        descriptors,
        extraErrorMessage:
          'You can only pass descriptors that match the same native application and version',
      },
    })
  } else if (descriptors.length === 0 && !semVerDescriptor) {
    // User provided no descriptors, nor a semver descriptor
    descriptors = await askUserToChooseOneOrMoreNapDescriptorFromCauldron({
      onlyReleasedVersions: true,
    })
  } else if (semVerDescriptor) {
    // User provided a semver Descriptor
    const semVerNapDescriptor = AppVersionDescriptor.fromString(
      semVerDescriptor
    )
    const cauldron = await getActiveCauldron()
    descriptors = await cauldron.getDescriptorsMatchingSemVerDescriptor(
      semVerNapDescriptor
    )
    if (descriptors.length === 0) {
      throw new Error(`No versions matching ${semVerDescriptor} were found`)
    } else {
      log.info(
        'CodePush release will target the following native application descriptors :'
      )
      for (const descriptor of descriptors) {
        log.info(`- ${descriptor}`)
      }
      if (!skipConfirmation) {

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .coerce('dependencies', d => d.map(PackagePath.fromString))

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .option('fullRegen', {

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .option('flavor', {

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .option('extraJsDependencies', {

export const commandHandler = async ({
  completeNapDescriptor,
  dependency,
}: {
  completeNapDescriptor: string
  dependency: string
}) => {
  log.warn(
    'This command has been deprecated in 0.31.0. Use `ern cauldry why` instead.'
  )
  const napDescriptor = AppVersionDescriptor.fromString(completeNapDescriptor)
  const cauldron = await getActiveCauldron()
  const miniApps = await cauldron.getContainerMiniApps(napDescriptor)
  log.info(`This might take a while. The more MiniApps, the longer.`)
  const result = await dependencyLookup.getMiniAppsUsingNativeDependency(
    miniApps,
    PackagePath.fromString(dependency)
  )
  if (!result || result.length === 0) {
    log.info(`${dependency} dependency is not directly used by any MiniApps`)
  } else {
    log.info(`The following MiniApp(s) are using ${dependency} dependency :`)
    for (const miniApp of result) {
      log.info(`=> ${miniApp.name}`)
    }
  }
}

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .option('disabled', {

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .coerce('miniapps', d => d.map(PackagePath.fromString))

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .epilog(epilog(exports))

    .coerce('descriptor', d => AppVersionDescriptor.fromString(d))
    .option('flavor', {