tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "noImplicitReturns": true,
    "noFallthroughCasesInSwitch": true,
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "target": "es2017",
    "module": "es2020",
    "lib": [
      "es2018",
      "dom"
    ],
    "paths": {
      "core-js/es7/reflect": [
        "node_modules/core-js/proposals/reflect-metadata"
      ],
      "core-js/es6/*": ["node_modules/core-js/es"],
      "core-js/es7/*": ["node_modules/core-js/es"],
      "ngx-formly-designer": [
        "projects/ngx-formly-designer/src/public_api"
      ]
    }
  },
  "angularCompilerOptions": {
    "enableResourceInlining": true,
    "skipTemplateCodegen": true,
    "strictMetadataEmit": true,
    "fullTemplateTypeCheck": true,
    "strictInjectionParameters": true,
    "strictInputAccessModifiers": true,
    "strictTemplates": true
  }
}