Getting errors during npm install

[gneatfosacho]

Package.json

 "jspm": {
   "devDependencies": {
          "jspm": "^0.16.55",
          ....
    },
    "dependencies": {
          "ts": "github:frankwallis/plugin-typescript@^9.0.0",
           ....
    }
}

Error on command - npm install --unsafe-perm

warn Error on getPackageConfig for github:frankwallis/plugin-typescript
360 | Unauthorized response for GitHub API.
361 | Use jspm registry config github to reconfigure the credentials, or update them in your ~/.netrc file.
362 |  
363 | warn Error getting package config for github:frankwallis/plugin-typescript.
364 | Downloading npm:is-subset@0.1.1
365 | Downloading npm:is-string@1.0.4
366 | Downloading npm:prop-types-extra@1.0.1
367 | Downloading npm:is-boolean-object@1.0.0
368 |  
369 | warn Error on download for github:frankwallis/plugin-typescript
370 | Unauthorized response for GitHub API.
371 | Use jspm registry config github to reconfigure the credentials, or update them in your ~/.netrc file.
372 |  
373 | err  Error downloading github:frankwallis/plugin-typescript.
374 |  
375 | warn Installation changes not saved.
376 | npm ERR! code 1
377 | npm ERR! path /codebuild/output/src998058684/src/src/main/webapp
378 | npm ERR! command failed
379 | npm ERR! command sh -c jspm install && npm run buildTS && node bundle.js
380 |  
381 | npm ERR! A complete log of this run can be found in:
382 | npm ERR!     /root/.npm/_logs/2021-04-08T19_21_58_444Z-debug.log
383 |  
384 | [Container] 2021/04/08 19:21:58 Command did not exit successfully npm install --unsafe-perm exit status 1
385 | [Container] 2021/04/08 19:21:58 Phase complete: BUILD State: FAILED
386

We are not using any jspm registry config as such

buildspec.yml:

version: 0.2

phases:
  install:
    commands:
     - curl --silent https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add -
     - apt-get update
     - apt-get install -yq curl
     - curl -sL https://deb.nodesource.com/setup_14.x | bash
     - apt-get install -yq nodejs
     - npm install -g npm
  build:
    commands:
      - echo Build started on `date`
      - echo Building Branch  `head -n 1 Dockerfile`
      - cd ./src/main/webapp
      - npm install --unsafe-perm         // Failing
      .............