Угловая 2 - Невозможно прочитать свойство «AssetUrl» undefined

Question

Я новичок в angular2 и material-design. Я пытаюсь использовать их togeather.

Я cloned это material2-app, который код приложения на основе angular2 и material2 и запустить npm install.

Когда я запустил эту команду npm start, чтобы запустить сервер. Я получил эту ошибку. Любые вести?

Error-from-terminal

> m2-app@0.0.0 start /home/adil/Code/AngularJS.2/a-simple-app/material2-app 
> ng serve 

Cannot read property 'AssetUrl' of undefined 
TypeError: Cannot read property 'AssetUrl' of undefined 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@angular/compiler-cli/src/private_import_compiler.js:10:51) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@angular/compiler-cli/src/reflector_host.js:13:33) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@angular/compiler-cli/src/path_mapped_reflector_host.js:16:24) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@angular/compiler-cli/src/codegen.js:16:36) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@angular/compiler-cli/index.js:12:17) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@ngtools/webpack/src/plugin.js:6:18) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/@ngtools/webpack/src/index.js:6:10) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/models/webpack-build-typescript.js:5:17) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/models/webpack-config.js:2:34) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/tasks/build-webpack.js:6:24) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/commands/build.js:3:23) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Class.module.exports.includedCommands (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/addon/index.js:21:16) 
at /home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/lib/models/project.js:392:61 
at Array.forEach (native) 
at Project.addonCommands (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/lib/models/project.js:391:15) 
at Project.eachAddonCommand (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/lib/models/project.js:426:30) 
at module.exports (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/lib/cli/lookup-command.js:33:13) 
at CLI.<anonymous> (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/angular-cli/lib/cli/cli.js:34:26) 
at tryCatch (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/rsvp/dist/rsvp.js:538:12) 
at invokeCallback (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/rsvp/dist/rsvp.js:553:13) 
at publish (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/rsvp/dist/rsvp.js:521:7) 
at flush (/home/adil/Code/AngularJS.2/a-simple-app/material2-app/node_modules/rsvp/dist/rsvp.js:2373:5) 
at nextTickCallbackWith0Args (node.js:419:9) 
at process._tickCallback (node.js:348:13) 

npm ERR! Linux 4.4.0-45-generic 
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "start" 
npm ERR! node v4.2.6 
npm ERR! npm v3.5.2 
npm ERR! code ELIFECYCLE 
npm ERR! m2-app@0.0.0 start: `ng serve` 
npm ERR! Exit status 1 
npm ERR! 
npm ERR! Failed at the m2-app@0.0.0 start script 'ng serve'. 
npm ERR! Make sure you have the latest version of node.js and npm installed. 
npm ERR! If you do, this is most likely a problem with the m2-app package, 
npm ERR! not with npm itself. 
npm ERR! Tell the author that this fails on your system: 
npm ERR!  ng serve 
npm ERR! You can get information on how to open an issue for this project with: 
npm ERR!  npm bugs m2-app 
npm ERR! Or if that isn't available, you can get their info via: 
npm ERR!  npm owner ls m2-app 
npm ERR! There is likely additional logging output above. 

npm ERR! Please include the following file with any support request: 
npm ERR!  /home/adil/Code/AngularJS.2/a-simple-app/material2- app/npm-debug.log 

Answer 1

вы должны добавить ng2material в system.js

в

var map = { 
    'ng2-material': 'node_modules/ng2-material', 
    }; 

    var packages = { 
    'ng2-material': {defaultExtension: 'js'}, 
    }; 

Answer 2

я столкнулась аналогичный вопрос. Кажется, проблема с новым компилятором-кли из Angular. Я решил, добавив следующее в devDependencies в package.json

"@angular/compiler-cli": "^2.0.0" 

После этого npm install снова исчезла ошибка.