嗨,大家好我在一个应用程序工作了2个月,它从来没有过。今天我输入了离子发球,它给了我一个空白页面。我再次再次尝试;没有改变。
控制台的错误是这样的:
```
Failed to load resource: the server responded with a status of 404 (Not Found)
vendor.js Failed to load resource: the server responded with a status of 404 (Not Found)
main.js Failed to load resource: the server responded with a status of 404 (Not Found)
vendor.js Failed to load resource: the server responded with a status of 404 (Not Found)
main.js Failed to load resource: the server responded with a status of 404 (Not Found)
main.css Failed to load resource: the server responded with a status of 404 (Not Found)
```
然后我在互联网上搜索解决方案并尝试:
```
npm uninstall -g cordova ionic
npm install -g cordova ionic
```
但它没有用!
所以我记得,一旦我之前备份了我的app文件夹。所以我试过,看到它的工作原理。我将备份文件夹的www / build文件夹文件复制到我最新的app-folder中。并再次运行离子服务。它自动删除所有文件,但不起作用?
我无法提供我的应用程序?请帮助我们。我没有做任何接受这个错误我感到震惊!
终奌站:
```
Starting app-scripts server: --address 0.0.0.0 --port 8100 --livereload-port 35729 --dev-logger-port 53703 --nobrowser -
Ctrl+C to cancel
[04:35:39] watch started ...
[04:35:39] build dev started ...
[04:35:39] clean started ...
[04:35:39] clean finished in 7 ms
[04:35:39] copy started ...
[04:35:39] deeplinks started ...
[04:35:39] deeplinks finished in 236 ms
[04:35:39] transpile started ...
[04:35:43] dev server running: http://localhost:8100/
[OK] Development server running!
Local: http://localhost:8100
External: http://192.168.1.3:8100, http://192.168.136.1:8100, http://192.168.80.1:8100
DevApp: DenemeApp@8100 on ASUS
[04:35:44] copy finished in 4.77 s
[04:35:44] watch ready in 4.94 s
```
停在这里。
我的离子信息:
```
cli packages: (C:\Users\Uğur\AppData\Roaming\npm\node_modules)
@ionic/cli-utils : 1.19.0
ionic (Ionic CLI) : 3.19.0
global packages:
cordova (Cordova CLI) : 7.1.0
local packages:
@ionic/app-scripts : 3.0.1
Cordova Platforms : none
Ionic Framework : ionic-angular 3.8.0
System:
Node : v6.11.4
npm : 3.10.10
OS : Windows 8.1
Environment Variables:
ANDROID_HOME : not set
Misc:
backend : pro
```
尝试在8102端口提供应用程序。我不知道你是如何管理它的。但是您更改了构建可用的端口。因此,请运行以下命令:
$ ionic serve --p 8102
我找不到解决方案,幸运的是我最近支持了这个项目。我不知道我对主文件夹做了什么,但我的备份文件夹运行良好。我做了完全相同的更改(更新)及其工作。