安装ngalain 时，错误: Cannot find module 'jsonc-parser？

Question

操作系统为ubuntu 16.04

$ ng version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI: 9.1.14
Node: 12.16.3
OS: linux x64

Angular: 9.1.13
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.901.14
@angular-devkit/build-angular     0.901.14
@angular-devkit/build-optimizer   0.901.14
@angular-devkit/build-webpack     0.901.14
@angular-devkit/core              9.1.14
@angular-devkit/schematics        9.1.14
@angular/cli                      9.1.14
@ngtools/webpack                  9.1.14
@schematics/angular               9.1.14
@schematics/update                0.901.14
rxjs                              6.5.5
typescript                        3.8.3
webpack                           4.42.0

 npm -v
6.14.5

node -v
v12.16.3

报错如下：

$ ng add ng-alain                 
Skipping installation: Package already installed
An unhandled exception occurred: Cannot find module 'jsonc-parser'
Require stack:
- /home/sinan/datashear/angular/my-ng-alain/node_modules/ng-alain/utils/json.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/ng-alain/utils/index.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/ng-alain/ng-add/index.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/@angular-devkit/schematics/tools/export-ref.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/@angular-devkit/schematics/tools/index.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/@angular/cli/utilities/json-schema.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/@angular/cli/models/command-runner.js
- /home/sinan/datashear/angular/my-ng-alain/node_modules/@angular/cli/lib/cli/index.js
- /usr/local/lib/node_modules/@angular/cli/lib/init.js
- /usr/local/lib/node_modules/@angular/cli/bin/ng
See "/tmp/ng-KSbH81/angular-errors.log" for further details.

Answer 1

已经处理好了。