Libman restore failed in Abp Boilerplate demo

[CoderLittleChen]

Describe the bug

I created a demo use Abp boilerplate template,the front end used mvc.
When i right click linman.json，choose restore clide-side library, not working

To Reproduce

Steps to reproduce the behavior:

1. created a demo use Abp boilerplate template,choose mvc
2. right click the libman.json
3. choose restore the library
4. See error

Error Info

The "jquery@3.4.1" library could not be resolved by the "cdnjs" provider
The "jquery.blockUI@2.70" library could not be resolved by the "cdnjs" provider
The "sweetalert@2.1.2" library could not be resolved by the "cdnjs" provider
The "spin.js@2.3.2" library could not be resolved by the "cdnjs" provider
The "toastr.js@2.1.4" library could not be resolved by the "cdnjs" provider
The "moment.js@2.24.0" library could not be resolved by the "cdnjs" provider
The "moment-timezone@0.5.23" library could not be resolved by the "cdnjs" provider
The "signalr.js@2.4.0" library could not be resolved by the "cdnjs" provider
The "jquery-validate@1.19.1" library could not be resolved by the "cdnjs" provider
The "jquery-validation-unobtrusive@3.2.11" library could not be resolved by the "cdnjs" provider
The "push.js@1.0.9" library could not be resolved by the "cdnjs" provider
Restore operation completed with errors

[jimmylewis]

This seems to indicate connectivity issues with the provider. Can you collect a network trace?