According to the Thingworx documentation, an attempt was made to develop a Gmail OAuth2 connector th

Reference documentation：

Tutorial A: Implement a Custom Connector Using ThingWorx Flow SDK

Tutorial B: ThingWorx Flow Connectors SDK Tutorial

Testing Connectors

Test locally through the above example, but there is an error, and the local configuration is as follows:

OAuth Connectors ，oauthGmail-gmail

{
 "name": "oauthGmail-gmail",
 "created_at": "2023-03-22T07:09:55.344Z",
 "updated_at": "2023-03-22T07:09:55.344Z",
 "uid": "6ad15babeeae449e9ccc7ac588cb9c60",
 "icon": "Add name of the Connector icon",
 "category": "",
 "title": "Add title for the Oauth",
 "oauth2_include": [],
 "oauth2_required": [],
 "oauth2_params_scope": [
 "{\"https://www.googleapis.com/auth/gmail.labels\":\"Manage mailbox labels\"}",
 "{\"https://www.googleapis.com/auth/gmail.insert\":\"Insert mail into your mailbox\"}",
 "{\"https://www.googleapis.com/auth/gmail.modify\":\"All read/write operations except immediate, permanent deletion of threads and messages, bypassing Trash.\"}",
 "{\"https://www.googleapis.com/auth/gmail.readonly\":\"Read all resources and their metadata—no write operations.\"}",
 "{\"https://www.googleapis.com/auth/gmail.compose\":\"Create, read, update, and delete drafts. Send messages and drafts.\"}",
 "{\"https://www.googleapis.com/auth/gmail.send\":\"Send email on your behalf\"}"
 ],
 "oauth2_refresh_data": [
 "{\"client_secret\":\"{client_secret}\"}",
 "{\"grant_type\":\"refresh_token\"}",
 "{\"client_id\":\"{client_id}\"}",
 "{\"refresh_token\":\"{refresh_token}\"}"
 ],
 "oauth2_refresh_url": "/token",
 "oauth2_token_data": [
 "{\"redirect_uri\":\"{redirect_uri}\"}",
 "{\"client_id\":\"{client_id}\"}",
 "{\"client_secret\":\"{client_secret}\"}",
 "{\"grant_type\":\"authorization_code\"}"
 ],
 "oauth2_token_url": "/token",
 "oauth2_auth_query": [
 "{\"client_id\":\"{client_id}\"}",
 "{\"response_type\":\"code\"}",
 "{\"resource\":\"{resource}\"}",
 "{\"scope\":\"{scope}\"}",
 "{\"redirect_uri\":\"{redirect_uri}\"}"
 ],
 "oauth2_validate_url": "",
 "oauth2_validate_method": "GET",
 "oauth2_validate_headers": [
 "{\"Authorization\":\"Bearer {access_token}\"}",
 "{\"Content-Type\":\"application/json\"}"
 ],
 "oauth2_auth_url": "/auth",
 "oauth2_no_state": false,
 "env_production_params": [],
 "env_pre_prod_params": [
 "{\"redirect_uri\":\"{OAUTH_ENDPOINT_OAUTH_RETURN}\"}",
 "{\"client_id\":\"{{{pre_prod.CLIENT_ID}}}\"}",
 "{\"client_secret\":\"{{{pre_prod.CLIENT_SECRET}}}\"}"
 ],
 "env_staging_params": [],
 "env_development_params": [
 "{\"redirect_uri\":\"{OAUTH_ENDPOINT_OAUTH_RETURN}\"}",
 "{\"client_id\":\"{{{development.CLIENT_ID}}}\"}",
 "{\"client_secret\":\"{{{development.CLIENT_SECRET}}}\"}"
 ],
 "env_local_params": [
 "{\"redirect_uri\":\"{OAUTH_ENDPOINT_OAUTH_RETURN}\"}",
 "{\"client_id\":\"{{{local.CLIENT_ID}}}\"}",
 "{\"client_secret\":\"{{{local.CLIENT_SECRET}}}\"}"
 ],
 "base_url": "https://accounts.google.com/o/oauth2/v2",
 "oauth_type": "OAuth2",
 "development_phase": "gold",
 "advanced_enabled": true,
 "express_enabled": false,
 "deleted_at": null,
 "published": true,
 "__v": 0
}

.flow 

.flow\flow.json

{
 "hostname" : "flow.local.rnd.ptc.com",
 "port" : 443
}

Execute the test command through cmd，Pop-up 404 box

flow test oauth oauthGmail-gmail -f ..\testOauthData.json -t "Test Gmail Oauth"

There are no logs in the .pm2 flolder

Could you tell me where the misconfiguration caused the problem?