ts is missing from the TypeScript compilation. Please make sure it is in your tsconfig via the 'files' or 'include' property

Question

I have upgraded the angular 4 application to angular 6. I have basically two projects. The parent project is packaged and referenced in the child project. The screen shot below shows parent project folder called @wtw that is referenced in the client project. The @wtw folder is under the node_modules folder. The child project was building the parent package fine when it was in Angular version 4. Ever since the upgrade has been done to 6 it complains of ts files under the wtw folder seems missing from the TypeScript compilation. Do I need to explicitly include the path in the tsConfig file.

I tried to add the following in the tsConfig but no difference

"inlcude": [
    "node_modules/@wtw/**/*"
  ]

tsConfig file

{
  "compileOnSave": false,

  "compilerOptions": {
    "outDir": "./dist/out-tsc",
    "baseUrl": "src",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es5",
    "typeRoots": [
      "node_modules/@types",
      "type-definition"
    ],
    "lib": [
      "es2017",
      "dom"
    ]
  },
  "inlcude": [
    "node_modules/@wtw/**/*"
  ]
}

angular.json file

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "app": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "irm",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "../wwwroot",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "src/tsconfig.app.json",
            "assets": [
              "src/assets",
              "src/favicon.ico",
              "src/favicon.png",
              "src/web.config",
              {
                "glob": "**/*",
                "input": "../node_modules/@wtw/platform/assets",
                "output": "./assets"
              },
              {
                "glob": "**/*",
                "input": "../assets",
                "output": "./assets"
              }
            ],
            "styles": [
              "../IRM.ClientSide/node_modules/@wtw/platform/styling/platform.scss"
            ],
            "scripts": [
              "../IRM.ClientSide/node_modules/jsoneditor/dist/jsoneditor.js"
            ]
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "environments/environment.ts",
                  "with": "environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "app:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "app:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "app:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "test.ts",
            "polyfills": "polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "styles": [],
            "scripts": [],
            "assets": []
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts",
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts",
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts"
            ]
          }
        }
      }
    },
    "pdf": {
      "root": "src",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "irm",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "../pdf",
            "index": "pdf.html",
            "main": "pdf.ts",
            "polyfills": "polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "assets": [
              "assets",
              "favicon.ico",
              {
                "glob": "**/*",
                "input": "../node_modules/@wtw/platform/assets",
                "output": "./assets"
              }
            ],
            "styles": [
              "./styles.scss"
            ],
            "scripts": []
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "environments/environment.ts",
                  "with": "environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "app:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "app:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "app:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "test.ts",
            "polyfills": "polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "styles": [],
            "scripts": [],
            "assets": []
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "src/tsconfig.app.json",
              "src/tsconfig.spec.json"
            ],
            "exclude": [
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts",
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts",
              "**/node_modules/**/*",
              "**/src/app/api/**/*",
              "**/src/polyfills.ts"
            ]
          }
        }
      }
    },
    "app-e2e": {
      "root": "e2e/",
      "projectType": "application",
      "architect": {
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "app:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "app:serve:production"
            }
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": "e2e/tsconfig.e2e.json",
            "exclude": [
              "**/node_modules/**"
            ]
          }
        }
      }
    }
  },
  "defaultProject": "app"
}

Answer 1

I had same problem, after 2 hour searching i finally found solution. In my case (i'm using Angular), i just set typescript related path into tsconfig.app.json(ATTENTION: file name is not tsconfig.json). another way is set entire typescript path into include section in tsconfig.app.json file (see below example).

in tsconfig.app.json change:

"files": [
    ...,
    "node_modules/jqwidgets-scripts/jqwidgets-ts/angular_jqxbargauge.ts"
  ],

or

"include": [
    ...,
    "node_modules/jqwidgets-scripts/jqwidgets-ts/**/*.ts"
  ],

Answer 2

05-09-2020

Angular 10

My issue was an invalid case of the component path due to copy/paste error :D

Wrong:

import { RegisterComponent } from './Register/Register.component';

Correct:

import { RegisterComponent } from './register/register.component';

Answer 3

In my case had a case mistake while importing the class in another component:

import { MyClass } from '../../../shared/models/Myclass';

The file was called MyClass.ts (capital C) and import from ../../../Myclass (lower c).

Answer 4

Appending "preserveSymlinks": true may help. It helped when a working directory path included a symlink.

For example:

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "app": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "irm",
      "schematics": {},
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "../wwwroot",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "preserveSymlinks": true,