StarAdmin-Free- Angular -Admin-Template не настраивается в локальной системе

Question

Я новичок в Angular, я попытался настроить StarAdmin-Free- Angular -Admin-Template в моей локальной системе, для этого я сначала выполняю npm установку в этот каталог, затем, когда пытаюсь чтобы выполнить ng serve, я получаю следующую ошибку.

Я не уверен, почему эта ошибка возникает, пожалуйста, проверьте и дайте мне знать

Спасибо

Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  src\styles.scss 48:9                     @import
  stdin 1:9                                root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7)
ERROR in ./src/app/footer/footer.component.scss
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  src\styles.scss 48:9                     @import
  stdin 1:9                                root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7)
ERROR in ./src/app/dashboard/dashboard.component.scss
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  src\styles.scss 48:9                     @import
  stdin 3:9                                root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7)
ERROR in ./src/app/sidebar/sidebar.component.scss
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  src\styles.scss 48:9                     @import
  stdin 3:9                                root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7)
ERROR in ./src/app/navbar/navbar.component.scss
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  src\styles.scss 48:9                     @import
  stdin 3:9                                root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7)
ERROR in ./src/styles.scss (./node_modules/@angular-devkit/build-angular/src/angular-cli-files/plugins/raw-css-loader.js!./node_modules/postcss-loader/src??embedded!./node_modules/sass-loader/lib/loader.js??ref--15-3!./src/styles.scss)
Module build failed (from ./node_modules/sass-loader/lib/loader.js):

      /deep/ .sidebar-offcanvas {
     ^
      Expected selector.
   ╷
23 │       /deep/ .sidebar-offcanvas{
   │       ^
   ╵
  src\assets\styles\_responsive.scss 23:7  @import
  stdin 48:9                               root stylesheet
      in E:\Angular\WebLearnApplication\src\assets\styles\_responsive.scss (line 23, column 7) ````