官方文档 Documentation | NestJS - A progressive Node.js framework

// nest-cli.json

{
  "collection": "@nestjs/schematics",
  "sourceRoot": "src",
  "compilerOptions": {
    "assets": [
      "microservices/mail/templates/"  
    ],
    "watchAssets": true
  }
}

原因：assets路径应该是相对于sourceRoot的相对路径 

typescript - Configure nest-cli.json to include non TS file into the dist folder - Stack Overflowhttps://stackoverflow.com/questions/68404610/configure-nest-cli-json-to-include-non-ts-file-into-the-dist-folder