3697482 - CAP : 500 - Error: No database connection

• CAP service POST fails:
  
  {"error":{"message":"No database connection","code":"NO_DATABASE_CONNECTION","@Common.numericSeverity":4}}
  
  
• cds watch error:
  
  

  cds serve all --with-mocks --in-memory?
  ( live reload enabled for browsers )

          ___________________________

  [cds] - loaded model from 3 file(s):

    srv\service.cds
    node_modules\@sap\cds\srv\outbox.cds
    db\index.cds

  [cds] - using auth strategy {
    kind: 'mocked',
    impl: 'node_modules\\@sap\\cds\\lib\\srv\\middlewares\\auth\\basic-auth.js'
  }
  [cds] - serving test {
    at: [ '/odata/v4/test' ],
    decl: 'srv\\service.cds:3',
    impl: 'node_modules\\@sap\\cds\\srv\\app-service.js'
  }
  [cds] - server listening on { url: 'http://localhost:4004' }
  [cds] - server v9.6.0 launched in 710 ms
  [cds] - [ terminate with ^C ]

  [odata] - POST /odata/v4/test/Tests
  [error] - 500 - Error: No database connection
      at ApplicationService.handle_crud_requests (...\node_modules\@sap\cds\libx\_runtime\common\generic\crud.js:14:18)
      at next (...\node_modules\@sap\cds\lib\srv\srv-dispatch.js:57:36)
      at ApplicationService.handle (...\node_modules\@sap\cds\lib\srv\srv-dispatch.js:60:6) {
    numericSeverity: 4,
    code: 'NO_DATABASE_CONNECTION'
  }

SAP CAP Node.js

@cap-js/sqlite, NO_DATABASE_CONNECTION, Error: No database connection , KBA , BC-XS-CDX-NJS , SAP CAP – node.js runtime , Problem