Google Cloud Function で関数をデプロイしたい

Question

Google Cloud Function で関数をデプロイしたいのですが、
次のようなエラーが表示され、エプロイに失敗してしまいます。

対策お分かりになる方がいらっしゃればご教示いただければ幸いです。

デプロイに失敗しました:
Build failed: {"error": {"canonicalCode": "INVALID_ARGUMENT", "errorMessage": "pip_download_wheels had stderr output:\nInvalid requirement: 'Function dependencies, for example:'\nTraceback (most recent call last):\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/packaging/requirements.py", line 93, in init\n req = REQUIREMENT.parseString(requirement_string)\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 1632, in parseString\n raise exc\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 1622, in parseString\n loc, tokens = self._parse( instring, 0 )\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 1379, in _parseNoCache\n loc,tokens = self.parseImpl( instring, preloc, doActions )\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 3395, in parseImpl\n loc, exprtokens = e._parse( instring, loc, doActions )\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 1383, in _parseNoCache\n loc,tokens = self.parseImpl( instring, preloc, doActions )\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/pyparsing.py", line 3183, in parseImpl\n raise ParseException(instring, loc, self.errmsg, self)\npip._vendor.pyparsing.ParseException: Expected stringEnd (at char 9), (line:1, col:10)\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 253, in from_line\n req = Requirement(req)\n File "/opt/python3.7/lib/python3.7/site-packages/pip/_vendor/packaging/requirements.py", line 97, in init\n requirement_string[e.loc:e.loc + 8]))\npip._vendor.packaging.requirements.InvalidRequirement: Invalid requirement, parse error at "'dependen'"\n\n\nerror: pip_download_wheels returned code: 1", "errorType": "InternalError", "errorId": "D4CDF107"}}

<main.py>

import base64

def hello_pubsub(event, context):
    """Triggered from a message on a Cloud Pub/Sub topic.
   Args:
         event (dict): Event payload.
         context (google.cloud.functions.Context): Metadata for the event.
    """
    pubsub_message = base64.b64decode(event['data']).decode('utf-8')
    print(pubsub_message)

<REQUIREMENTS.TXT>

Function dependencies, for example:
package>=version

<その他環境等>
トリガー　Cloud Pub/Sub
リージョンus-central1
割り当てられたメモリ128 MB
python3.7
ソースコード　インラインエディタ

Answer 1

解決しました。お騒がせしました。

トリガーを、
Cloud Pub/Subではなく、HTTP　にしたところうまくいきました。