swa start doesn't run both api and static site together

Describe the bug I cannot start the static page and api at the same time using one command.

To Reproduce

1. Follow the tutorial here https://learn.microsoft.com/en-us/azure/static-web-apps/getting-started?tabs=vanilla-javascript
2. Get to the running locally step https://learn.microsoft.com/en-us/azure/static-web-apps/add-api?tabs=vanilla-javascript#start-the-cli
3. run the command swa start src --api-location api

Expected behaviour I expect to be able to browse to http://localhost:4280 and make a GET api call to http://localhost:7071/api/message but can only access the api, the site at 4280 is not running.

If I run the command swa start src then I get the http://localhost:4280 site running, but obviously not the API

Output (verbose) log from running swa start src --api-location api --verbose=silly

Welcome to Azure Static Web Apps CLI (1.0.3)

Getting config file options from swa-cli.config.json...
Config file does not exist at C:\<redacted>\spa-vanilla\swa-cli.config.json
***********************************************************************
* WARNING: This emulator may not match the cloud environment exactly. *
* Always deploy and test your app in Azure.                           *
***********************************************************************

Checking if localhost:4280 is accepting TCP connections...
Port 4280 is available. Use it.
Resolved port number: 4280
Resolving outputLocation=src full path...
Resolved outputLocation:
  C:\<redacted>\spa-vanilla\src
Trying to read workflow config with values:
 - appLocation: C:\<redacted>\spa-vanilla
 - outputLocation: C:\<redacted>\spa-vanilla\src
 - apiLocation: C:\<redacted>\spa-vanilla\api
Found a SWA workflow file: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
 - app_build_command: <undefined>
 - api_build_command: <undefined>
 - app_location: /src
 - output_location: /src
 - api_location: api
Validating user workflow config (BEFORE):
 - appLocation: C:\<redacted>\spa-vanilla
 - outputLocation: C:\<redacted>\spa-vanilla\src
 - apiLocation: C:\<redacted>\spa-vanilla\api
Validating user workflow config (AFTER):
 - appLocation: C:\<redacted>\spa-vanilla
 - apiLocation: C:\<redacted>\spa-vanilla\api
 - outputLocation: C:\<redacted>\spa-vanilla\src
Workflow configuration:
- config:
  - appBuildCommand: <undefined>
  - apiBuildCommand: <undefined>
  - appLocation: C:\<redacted>\spa-vanilla
  - apiLocation: C:\<redacted>\spa-vanilla\api
  - outputLocation: C:\<redacted>\spa-vanilla\src
 - files:
   - 0: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
User workflow config:
 - appBuildCommand: <undefined>
 - apiBuildCommand: <undefined>
 - appLocation: C:\<redacted>\spa-vanilla
 - apiLocation: C:\<redacted>\spa-vanilla\api
 - outputLocation: C:\<redacted>\spa-vanilla\src
- files:
  - 0: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
Starting the SWA emulator with the following configuration:
- ssl:
  - 0: false
  - 1: <undefined>
  - 2: <undefined>
- env:
  - SWA_RUNTIME_CONFIG_LOCATION: C:\<redacted>\spa-vanilla
  - SWA_RUNTIME_WORKFLOW_LOCATION: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
  - SWA_CLI_DEBUG: silly
  - SWA_CLI_API_PORT: 7071
  - SWA_CLI_APP_LOCATION: C:\<redacted>\spa-vanilla
  - SWA_CLI_OUTPUT_LOCATION: C:\<redacted>\spa-vanilla\src
  - SWA_CLI_API_LOCATION: C:\<redacted>\spa-vanilla\api
  - SWA_CLI_HOST: localhost
  - SWA_CLI_PORT: 4280
  - SWA_CLI_APP_SSL: false
  - SWA_CLI_APP_SSL_CERT: <undefined>
  - SWA_CLI_APP_SSL_KEY: <undefined>
  - SWA_CLI_STARTUP_COMMAND: <undefined>
  - SWA_CLI_VERSION: 1.0.3
  - SWA_CLI_SERVER_TIMEOUT: 60
  - SWA_CLI_OPEN_BROWSER: false
- commands:
  - swa: node "C:\Users\peter\AppData\Roaming\npm\node_modules\@azure\static-web-apps-cli\dist\msha\server.js"
  - api: cd "C:\<redacted>\spa-vanilla\api" && C:\Users\peter\.swa\core-tools\v4\func start --cors "*" --port 7071
  - run: <undefined>
[api]
Azure Functions Core Tools
[api] Core Tools Version:       4.0.4865 Commit hash: N/A  (32-bit)
[api] Function Runtime Version: 4.12.2.19454
[api]
[swa]
[swa] Using workflow file:
[swa]   C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
[api] [2022-11-08T14:32:37.538Z] File 'C:\Program Files (x86)\dotnet\dotnet.exe' is not found, 'dotnet' invocation will rely on the PATH environment variable.
[swa] No staticwebapp.config.json found in current project
[swa] Validating dev server config:
[swa]  - url: http://localhost:7071
[swa]  - timeout: 60
[swa] Checking if localhost:7071 is accepting TCP connections...
[swa] - Waiting for http://localhost:7071 to be ready
[api] [2022-11-08T14:32:37.806Z] File 'C:\Program Files (x86)\dotnet\dotnet.exe' is not found, 'dotnet' invocation will rely on the PATH environment variable.
[api]
[api] Functions:
[api]
[api]   message:  http://localhost:7071/api/message
[api]
[api] For detailed output, run func with --verbose flag.
[api] [2022-11-08T14:32:38.320Z] Worker process started and initialized.

log from running swa start src --verbose=silly

Welcome to Azure Static Web Apps CLI (1.0.3)

Getting config file options from swa-cli.config.json...
Config file does not exist at C:\<redacted>\spa-vanilla\swa-cli.config.json
***********************************************************************
* WARNING: This emulator may not match the cloud environment exactly. *
* Always deploy and test your app in Azure.                           *
***********************************************************************

Checking if localhost:4280 is accepting TCP connections...
Port 4280 is available. Use it.
Resolved port number: 4280
Resolving outputLocation=src full path...
Resolved outputLocation:
  C:\<redacted>\spa-vanilla\src
Trying to read workflow config with values:
 - appLocation: C:\<redacted>\spa-vanilla
 - outputLocation: C:\<redacted>\spa-vanilla\src
 - apiLocation: <undefined>
Found a SWA workflow file: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
 - app_build_command: <undefined>
 - api_build_command: <undefined>
 - app_location: /src
 - output_location: /src
 - api_location: api
Validating user workflow config (BEFORE):
 - appLocation: C:\<redacted>\spa-vanilla
 - outputLocation: C:\<redacted>\spa-vanilla\src
 - apiLocation: <undefined>
Validating user workflow config (AFTER):
 - appLocation: C:\<redacted>\spa-vanilla
 - apiLocation: <undefined>
 - outputLocation: C:\<redacted>\spa-vanilla\src
Workflow configuration:
- config:
  - appBuildCommand: <undefined>
  - apiBuildCommand: <undefined>
  - appLocation: C:\<redacted>\spa-vanilla
  - apiLocation: <undefined>
  - outputLocation: C:\<redacted>\spa-vanilla\src
 - files:
   - 0: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
User workflow config:
 - appBuildCommand: <undefined>
 - apiBuildCommand: <undefined>
 - appLocation: C:\<redacted>\spa-vanilla
 - apiLocation: <undefined>
 - outputLocation: C:\<redacted>\spa-vanilla\src
- files:
  - 0: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
Starting the SWA emulator with the following configuration:
- ssl:
  - 0: false
  - 1: <undefined>
  - 2: <undefined>
- env:
  - SWA_RUNTIME_CONFIG_LOCATION: C:\<redacted>\spa-vanilla
  - SWA_RUNTIME_WORKFLOW_LOCATION: C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
  - SWA_CLI_DEBUG: silly
  - SWA_CLI_API_PORT: 7071
  - SWA_CLI_APP_LOCATION: C:\<redacted>\spa-vanilla
  - SWA_CLI_OUTPUT_LOCATION: C:\<redacted>\spa-vanilla\src
  - SWA_CLI_API_LOCATION: <undefined>
  - SWA_CLI_HOST: localhost
  - SWA_CLI_PORT: 4280
  - SWA_CLI_APP_SSL: false
  - SWA_CLI_APP_SSL_CERT: <undefined>
  - SWA_CLI_APP_SSL_KEY: <undefined>
  - SWA_CLI_STARTUP_COMMAND: <undefined>
  - SWA_CLI_VERSION: 1.0.3
  - SWA_CLI_SERVER_TIMEOUT: 60
  - SWA_CLI_OPEN_BROWSER: false
- commands:
  - swa: node "C:\Users\peter\AppData\Roaming\npm\node_modules\@azure\static-web-apps-cli\dist\msha\server.js"
  - api: <undefined>
  - run: <undefined>
[swa]
[swa] Using workflow file:
[swa]   C:\<redacted>\spa-vanilla\.github\workflows\azure-static-web-apps-thankful-island-0c2e35803.yml
[swa] No staticwebapp.config.json found in current project
[swa]
[swa] Serving static content:
[swa]   C:\<redacted>\spa-vanilla\src
[swa]
[swa] Azure Static Web Apps emulator started at http://localhost:4280. Press CTRL+C to exit.
[swa]
[swa]

Desktop (please complete the following information):

• OS: Windows: 10
• @azure/static-web-apps-cli@1.0.3
• azure-functions-core-tools@4.0.4865

[peterfearn]

I have downgraded node to 16.18.1 and it works now.

I was previously running node 18.12.1

[Reshmi-Sriram]

Hi @peterfearn, We are investigating this and will get back to you with further questions for clarification!