Angular-CLI AOT - 错误堆栈跟踪

Question

有谁知道在使用带有 AOT 编译的 Angular CLI 时如何获得更详细的错误堆栈跟踪？使用 JIT 编译运行时，我的应用程序没有问题，但是当我运行 ng build --aot 时，我得到的只是:TypeError: Cannot read property "length"of undefined。没有信息错误的来源在哪里。我想我的模板之一存在问题，但我不知道问题出在哪个模板上。

我使用的是最新版本的 Angular CLI (1.0.0-beta.24) 和 Angular 2 (2.4.1)。

编辑

这是使用 ng serve --aot 命令时编译器的完整消息:

Cannot read property 'length' of undefined

./app/main.ts
Module not found: Error: Can't resolve './$$_gendir/app.module.ngfactory' in 'C:\frontend-angular-cli\app'
resolve './$$_gendir/app.module.ngfactory' in 'C:\frontend-angular-cli\app'
using description file: C:\frontend-angular-cli\package.json (relative path: ./app)
Field 'browser' doesn't contain a valid alias configuration
after using description file: C:\frontend-angular-cli\package.json (relative path: ./app)
using description file: C:\frontend-angular-cli\package.json (relative path: ./app/$$_gendir/app.module.ngfactory)
as directory
C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory doesn't exist
no extension
Field 'browser' doesn't contain a valid alias configuration
C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory doesn't exist
.ts
Field 'browser' doesn't contain a valid alias configuration
C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory.ts doesn't exist
.js
Field 'browser' doesn't contain a valid alias configuration
C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory.js doesn't exist
[C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory]
[C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory]
[C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory.ts]
[C:\frontend-angular-cli\app\$$_gendir\app.module.ngfactory.js]
@ ./app/main.ts 8:0-70
@ multi main

./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js
Module not found: Error: Can't resolve 'C:\frontend-angular-cli\app\$$_gendir' in 'C:\frontend-angular-cli\node_modules\@angular\core\src\linker'
resolve 'C:\frontend-angular-cli\app\$$_gendir' in 'C:\frontend-angular-cli\node_modules\@angular\core\src\linker'
using description file: C:\frontend-angular-cli\node_modules\@angular\core\package.json (relative path: ./src/linker)
Field 'browser' doesn't contain a valid alias configuration
after using description file: C:\frontend-angular-cli\node_modules\@angular\core\package.json (relative path: ./src/linker)
using description file: C:\frontend-angular-cli\package.json (relative path: ./app/$$_gendir)
as directory
C:\frontend-angular-cli\app\$$_gendir doesn't exist
[C:\frontend-angular-cli\app\$$_gendir]
@ ./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js 69:15-36 85:15-102
@ ./~/@angular/core/src/linker.js
@ ./~/@angular/core/src/core.js
@ ./~/@angular/core/index.js
@ ./app/main.ts
@ multi main

Answer 1

使用 AOT 编译器时也有此错误消息。就我而言，这是应用程序模块的提供者配置中的 token 问题，该 token 不适用于 AOT。参见 https://www.bennadel.com/blog/3138-creating-a-custom-errorhandler-in-angular-2-rc-6.htm?&_=0.39111966827042277#comments_48858