我正在尝试将 sequelize 模型与 SQL Server 中的现有数据库一起使用。当我尝试使用原始查询从表中检索数据时，它可以工作。但是当我使用模型时，我收到以下错误：
Error Occurred TypeError: Cannot convert undefined or null to object
at Function.keys (<anonymous>)
at Function.findAll (D:\Users\carlosli\Desktop\SigaWeb\node_modules\sequelize\lib\model.js:1692:47)
at index (D:\Users\carlosli\Desktop\SigaWeb\src\controllers\consulta_controller.js:7:39)
at Layer.handle [as handle_request] (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\layer.js:95:5)
at next (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\layer.js:95:5)
at D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:281:22
at Function.process_params (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:335:12)
at next (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:275:10)
at Function.handle (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:174:3)
at router (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:47:12)
at Layer.handle [as handle_request] (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:317:13)
at D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:284:7
at Function.process_params (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:335:12)
at next (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\index.js:275:10)
at jsonParser (D:\Users\carlosli\Desktop\SigaWeb\node_modules\body-parser\lib\types\json.js:110:7)
at Layer.handle [as handle_request] (D:\Users\carlosli\Desktop\SigaWeb\node_modules\express\lib\router\layer.js:95:5)
at …