commands do NOT work for me

[st-clair-clarke]

Hi,
Trying to use the package but sapper commands do not work. receive the following:

J:\workspace\svelte>npx create-svelte-site sapper-web-pak
? Please select a template. Sapper (webpack)
Oops...something went wrong. Please try again. { [Error: request failed with status code: 400] errno: -1, errorFunction: 'Clone.clone' }
Great choice! Generating your Sapper (webpack) app... done

J:\workspace\svelte>cd sapper-web-pak
The system cannot find the path specified.

J:\workspace\svelte>cd sapper-web-pak
The system cannot find the path specified.

J:\workspace\svelte>npx create-svelte-site sapper-web-pak
? Please select a template. Sapper (webpack)
Oops...something went wrong. Please try again. { [Error: request failed with status code: 400] errno: -1, errorFunction: 'Clone.clone' }
Great choice! Generating your Sapper (webpack) app... done

J:\workspace\svelte>npx create-svelt-site sapper-rollup
Error: EPERM: operation not permitted, mkdir 'C:\Users\St'
TypeError: Cannot read property 'get' of undefined
    at errorHandler (P:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:205:18)
    at P:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js:78:20
    at cb (P:\Program Files\nodejs\node_modules\npm\lib\npm.js:228:22)
    at P:\Program Files\nodejs\node_modules\npm\lib\npm.js:266:24
    at P:\Program Files\nodejs\node_modules\npm\lib\config\core.js:83:7
    at Array.forEach (<anonymous>)
    at P:\Program Files\nodejs\node_modules\npm\lib\config\core.js:82:13
    at f (P:\Program Files\nodejs\node_modules\npm\node_modules\once\once.js:25:25)
    at afterExtras (P:\Program Files\nodejs\node_modules\npm\lib\config\core.js:173:20)
    at P:\Program Files\nodejs\node_modules\npm\node_modules\mkdirp\index.js:47:53
P:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:205
  if (npm.config.get('json')) {
                 ^

TypeError: Cannot read property 'get' of undefined
    at process.errorHandler (P:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:205:18)
    at process.emit (events.js:182:13)
    at process._fatalException (internal/bootstrap/node.js:491:27)
Install for create-svelt-site@latest failed with code 7

J:\workspace\svelte>npx create-svelte-site sapper-rollup
? Please select a template. Sapper (rollup)
Oops...something went wrong. Please try again. { [Error: request failed with status code: 400] errno: -1, errorFunction: 'Clone.clone' }
Great choice! Generating your Sapper (rollup) app... done
```