Ошибка развертывания AppEngine (app.yaml)

Я пытаюсь развернуть файл app.yaml в гибком приложении appengine.

Вот мой файл app.yaml

runtime: java
env: flex
manual_scaling:
  instances: 1

handlers:
- url: /.*
  script: this field is required, but ignored
  secure: always

runtime_config:  # Optional
  jdk: openjdk8
  server: jetty9

resources:
  cpu: 0.5
  memory_gb: 0.18
  disk_size_gb: 10

Я пытаюсь развернуть его с помощью этой команды:

Развертывание приложения gcloud app.yaml --verbosity=debug

И это ошибка, которую я получаю:

DEBUG: No staging command found for runtime [java] and environment [FLEX].
WARNING: Deployment of App Engine Flexible Environment apps is currently in Beta
Building and pushing image for service [my-service]
DEBUG: Could not call git with args ('config', '--get-regexp', 'remote\\.(.*)\\.url'): [Error 2] The system cannot find the file specified
INFO: Not checking for [Custom] because runtime is [java]
INFO: Not checking for [Go] because runtime is [java]
INFO: Not checking for [Ruby] because runtime is [java]
INFO: Not checking for [Node.js] because runtime is [java]
INFO: Checking for Java.
INFO: Not checking for [Python Compat] because runtime is [java]
INFO: Not checking for [Python] because runtime is [java]
INFO: Not checking for [PHP] because runtime is [java]
DEBUG: (gcloud.app.deploy) Your application does not satisfy all of the requirements for a runtime of type [java].  Please correct the errors and try again.
Traceback (most recent call last):
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\calliope\cli.py", line 742, in Execute
    resources = args.calliope_command.Run(cli=self, args=args)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\calliope\backend.py", line 739, in Run
    resources = command_instance.Run(args)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\surface\app\deploy.py", line 59, in Run
    return deploy_util.RunDeploy(args)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\command_lib\app\deploy_util.py", line 413, in RunDeploy
    all_services)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\command_lib\app\deploy_util.py", line 241, in Deploy
    new_version, service, source_dir, image, code_bucket_ref)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\command_lib\app\deploy_util.py", line 176, in _PossiblyBuildAndPush
    code_bucket_ref, self.deploy_options.use_runtime_builders)
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\api_lib\app\deploy_command_util.py", line 206, in BuildAndPushDockerImage
    gen_files.update(_GetDockerfiles(service, source_dir))
  File "C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\lib\googlecloudsdk\api_lib\app\deploy_command_util.py", line 139, in _GetDockerfiles
    'again.'.format(info.runtime))
UnsatisfiedRequirementsError: Your application does not satisfy all of the requirements for a runtime of type [java].  Please correct the errors and try again.
ERROR: (gcloud.app.deploy) Your application does not satisfy all of the requirements for a runtime of type [java].  Please correct the errors and try again.

Таким образом, он не развертывает app.yaml. Однако, если я запускаю эту команду:

развертывание приложения gcloud cron.yaml

Это будет работать просто отлично.