npm run start：dev 找不到模块

Question

npm run start 工作正常，但 npm run start: dev 抛出此错误：

\n\n

7:14:22 PM - Found 0 errors. Watching for file changes.\ninternal/modules/cjs/loader.js:638\nthrow err;\n^\nError: Cannot find module \'src/models/note.model\'\nat Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)\nat Function.Module._load (internal/modules/cjs/loader.js:562:25)\nat Module.require (internal/modules/cjs/loader.js:692:17)\nat require (internal/modules/cjs/helpers.js:25:18)\nat Object.<anonymous> (C:\\Users\\Anuitex-169\\Desktop\\VersF\\nest\\server\\dist\\note\\note.service.js:17:22)\nat Module._compile (internal/modules/cjs/loader.js:778:30)\nat Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)\nat Module.load (internal/modules/cjs/loader.js:653:32)\nat tryModuleLoad (internal/modules/cjs/loader.js:593:12)\nat Function.Module._load (internal/modules/cjs/loader.js:585:3)\n

\n\n

这个错误从我的项目一开始就出现了，我不明白为什么。我决定忘记这个问题，因为 npm run start 效果很好。但不知怎的有点不舒服（

\n\n

我的 app.module.ts \n我的 package.json 文件：

\n\n

    {\n      "name": "server",\n      "version": "0.0.1",\n      "description": "",\n      "author": "",\n      "license": "MIT",\n      "scripts": {\n        "build": "rimraf dist && tsc -p tsconfig.build.json",\n        "format": "prettier --write \\"src/**/*.ts\\"",\n        "start": "ts-node -r tsconfig-paths/register src/main.ts",\n        "start:dev": "tsc-watch -p tsconfig.build.json --onSuccess \\"node dist/main.js\\"",\n        "start:debug": "tsc-watch -p tsconfig.build.json --onSuccess \\"node --inspect-brk dist/main.js\\"",\n        "start:prod": "node dist/main.js",\n        "lint": "tslint -p tsconfig.json -c tslint.json",\n        "test": "jest",\n        "test:watch": "jest --watch",\n        "test:cov": "jest --coverage",\n        "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",\n        "test:e2e": "jest --config ./test/jest-e2e.json"\n      },\n      "dependencies": {\n        "@nestjs/common": "^6.0.0",\n        "@nestjs/core": "^6.0.0",\n        "@nestjs/platform-express": "^6.0.0",\n        "@nestjs/typeorm": "^6.1.3",\n        "mongodb": "^3.3.2",\n        "path": "^0.12.7",\n        "reflect-metadata": "^0.1.12",\n        "rimraf": "^2.6.2",\n        "rxjs": "^6.3.3",\n        "typeorm": "^0.2.19"\n      },\n      "devDependencies": {\n        "@nestjs/testing": "^6.0.0",\n        "@types/express": "4.16.1",\n        "@types/jest": "24.0.11",\n        "@types/multer": "^1.3.10",\n        "@types/node": "11.13.4",\n        "@types/supertest": "2.0.7",\n        "jest": "24.7.1",\n        "prettier": "1.17.0",\n        "supertest": "4.0.2",\n        "ts-jest": "24.0.2",\n        "ts-node": "8.1.0",\n        "tsc-watch": "2.2.1",\n        "tsconfig-paths": "3.8.0",\n        "tslint": "5.16.0",\n        "typescript": "3.4.3"\n      },\n      "jest": {\n        "moduleFileExtensions": [\n          "js",\n          "json",\n          "ts"\n        ],\n        "rootDir": ".",\n        "roots": [\n          "<rootDir>/src/",\n          "<rootDir>/libs/",\n          "<rootDir>/apps/"\n        ],\n        "testRegex": ".spec.ts$",\n        "transform": {\n          "^.+\\\\.(t|j)s$": "ts-jest"\n        },\n        "coverageDirectory": "./coverage",\n        "testEnvironment": "node"\n      }\n    }\n

\n\n

请帮我解决这个问题。

\n

Answer 1

您的 AppModule 看起来不错，所以我想知道您的 NoteService 中是否发生了某些情况，这一行使得看起来就是这种情况at Object.<anonymous> (C:\Users\Anuitex-169\Desktop\VersF\nest\server\dist\note\note.service.js:17:22)。

src如果我必须打赌，当您位于目录中时，您会尝试从目录中读取模块dist（至少通过标准 Typescript 编译）。您不应使用像这样的导入，而src/models/note.model应该使用考虑当前文件路径的导入（例如../models/note.model）。您可能需要稍微改变一下，但这就是应该发生的事情的想法