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angular cli:无法读取未定义的属性“write”

angular

3

moueidat · 技术社区 · 7 年前

在一些角度包(从4升级到5)升级后,同事遇到以下问题:

Cannot read property 'write' of undefined
TypeError: Cannot read property 'write' of undefined
   at UI.write (C:\Workspace\MyAngularApp\MyAngularApp.Web\node_modules\@angular\cli\ember-cli\lib\ui\index.js:56:23)
   at UI.writeLine (C:\Workspace\MyAngularApp\MyAngularApp.Web\node_modules\@angular\cli\ember-cli\lib\ui\index.js:69:8)
   at Class.run (C:\Workspace\MyAngularApp\MyAngularApp.Web\node_modules\@angular\cli\tasks\serve.js:237:12)
   at check_port_1.checkPort.then.port (C:\Workspace\MyAngularApp\MyAngularApp.Web\node_modules\@angular\cli\commands\serve.js:123:26)
   at <anonymous>
   at process._tickCallback (internal/process/next_tick.js:188:7)

这个问题是不可理解的,因为我没有这个问题,而且在vsts中构建也很成功:(

下面是package.json(从4.3.6升级后):

    "dependencies": {
        "@angular-devkit/core": "0.6.8",
        "@angular/animations": "5.2.9",
        "@angular/common": "5.2.9",
        "@angular/compiler": "5.2.9",
        "@angular/core": "5.2.9",
        "@angular/forms": "5.2.9",
        "@angular/http": "5.2.9",
        "@angular/platform-browser": "5.2.9",
        "@angular/platform-browser-dynamic": "5.2.9",
        "@angular/router": "5.2.9",
        "@ngx-translate/core": "8.0.0",
        "@ngx-translate/http-loader": "1.0.2",
        "angular-azure-blob-service": "1.0.0",
        "angular-sortablejs": "2.0.6",
        "angular2-fontawesome": "5.2.1",
        "angular2-multiselect-dropdown": "2.4.0",
        "bootstrap": "4.1.1",
        "copy-webpack-plugin": "4.3.1",
        "core-js": "2.5.0",
        "font-awesome": "4.7.0",
        "jquery": "^3.3.1",
        "lightbox2": "2.10.0",
        "lodash": "4.17.4",
        "moment": "2.20.1",
        "ng2-completer": "1.6.1",
        "ng5-breadcrumb": "0.0.6",
        "ngx-bootstrap": "^3.0.1",
        "ngx-chips": "^1.9.2",
        "popper.js": "^1.14.3",
        "rxjs": "5.5.8",
        "sortablejs": "1.6.0",
        "tether": "^1.4.4",
        "zone.js": "0.8.23"
      },
      "devDependencies": {
        "@angular/cli": "1.7.4",
        "@angular/compiler-cli": "^5.2.9",
        "@types/jasmine": "2.5.54",
    "@types/node": "8.0.25",
    "codelyzer": "4.0.2",
    "jasmine-core": "2.8.0",
    "jasmine-spec-reporter": "4.2.1",
    "karma": "1.7.0",
    "karma-chrome-launcher": "2.2.0",
    "karma-cli": "1.0.1",
    "karma-coverage-istanbul-reporter": "1.3.0",
    "karma-jasmine": "1.1.0",
    "karma-jasmine-html-reporter": "0.2.2",
    "protractor": "5.1.2",
    "ts-node": "3.3.0",
    "tslint": "5.8.0",
    "typescript": "~2.8.1"
  }

我的同事在安装与我的版本(1.7.4)相同的alpha版本@angular/cli 6.0.x之前就已经安装了,也许这是个线索?

环境: @角度/cli:1.7.4 节点:8.9.4 净现值:6.1.0

3 回复 | 直到 7 年前

1

12

cwiq 7 年前

发现:d

我们必须卸载global@angular/cli,然后重新安装:p

使用的命令:

npm卸载-g@angular/cli
安装NPM
删除package-lock.json(credits:@pierreduc)
NPM安装
npm安装-g@angular/cli
天然气发球

享受:)

为什么不直接用6角呢?因为有一些与rxjs相关的突破性变化,但是是的,我们期待着将其更新到angular6。

是的,您是对的@ploppy;)(使用update.angular.io)

2

1

Riscie 7 年前

我和moueidat处于同一个位置,并使用node modules文件夹中的angular cli二进制文件使其工作:

node.exe .\node_modules\@angular\cli\bin\ng serve

3

0

Stephen E. 7 年前

我认为这与最新的@angular/cli版本有关。检查您的全局版本是否与您的同事不同。

我有同样的问题,但这是因为我有一个6.1.1的全局角度版本,当我回到6.0.0时,它是好的。