Recently upgraded my application from Angular 2.3.0 to Angular 4.0.3. In the process also upgraded angular-cli. If project cloned to a new directory, it is throwing:
Cannot read property 'config' of null TypeError: Cannot read property 'config' of null at Class.run (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/tasks/build.js:16:56) at Class.run (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/commands/build.js:143:26) at Class. (/Users/hyadav/Documents/projects/web-app/node_modules/@angular/cli/ember-cli/lib/models/command.js:134:17) at process._tickCallback (internal/process/next_tick.js:109:7)
package.json
"scripts": {
"ng": "ng",
"start": "ng serve",
"build": "ng build",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"private": true,
"dependencies": {
"@angular/animations": "^4.0.3",
"@angular/cli": "^1.0.1",
"@angular/common": "^4.0.3",
"@angular/compiler": "^4.0.3",
"@angular/compiler-cli": "^4.0.3",
"@angular/core": "^4.0.3",
"@angular/forms": "^4.0.3",
"@angular/http": "^4.0.3",
"@angular/material": "^2.0.0-beta.3",
"@angular/platform-browser": "^4.0.3",
"@angular/platform-browser-dynamic": "^4.0.3",
"@angular/platform-server": "^4.0.3",
"@angular/router": "^4.0.3",
"core-js": "^2.4.1",
"hammerjs": "^2.0.8",
"rxjs": "^5.2.0",
"typescript": "^2.2.2",
"zone.js": "^0.8.4"
},
"devDependencies": {
"@angular/cli": "^1.0.1",
"@angular/compiler-cli": "^2.4.0",
"@types/jasmine": "2.5.38",
"@types/node": "~6.0.60",
"codelyzer": "~2.0.0",
"jasmine-core": "~2.5.2",
"jasmine-spec-reporter": "~3.2.0",
"karma": "~1.4.1",
"karma-chrome-launcher": "~2.0.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^0.2.0",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"protractor": "~5.1.0",
"ts-node": "~2.0.0",
"tslint": "~4.4.2",
"typescript": "~2.2.2"
}
This is a working solution until Angular v5 because inside v6, the location of the file changed to angular.json, and changed also the content
Create a new file called .angular-cli.json and insert:
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"project": {
"name": "PROJECT_NAME"
},
"apps": [
{
"root": "src",
"outDir": "dist",
"assets": [
"assets",
"favicon.ico"
],
"index": "index.html",
"main": "main.ts",
"polyfills": "polyfills.ts",
"test": "test.ts",
"tsconfig": "tsconfig.app.json",
"testTsconfig": "tsconfig.spec.json",
"prefix": "app",
"styles": [
"styles.css"
],
"scripts": [],
"environmentSource": "environments/environment.ts",
"environments": {
"dev": "environments/environment.ts",
"prod": "environments/environment.prod.ts"
}
}
],
"e2e": {
"protractor": {
"config": "./protractor.conf.js"
}
},
"lint": [
{
"project": "src/tsconfig.app.json"
},
{
"project": "src/tsconfig.spec.json"
},
{
"project": "e2e/tsconfig.e2e.json"
}
],
"test": {
"karma": {
"config": "./karma.conf.js"
}
},
"defaults": {
"styleExt": "css",
"component": {}
}
}
You will also find a copy of this json if you create a new project from angular-cli.
Fixed the issue by copying .angular-cli.json file to the new directory.
Per request, more details:
After creating your project, but prior to moving it to a different directory you will notice a .angular-cli.json file was created, visible from the command line via ls -al. This file is needed in the root directory of your project. It should be moved there via mv .angular-cli.json . and should be added to source control so others cloning the project have this file.
i found the solution ! :D
in my case i moved the project to another directory there is a hidden file called .angular-cli,
show the hidden file in the old project and copy this file and paste it in the new destination.
this is solved the issue for me.