无法从Github发布npm包？

我已使用此命令发布：

   npm login
   npm publish

但当我想通过以下步骤通过Github（私有存储库）再次发布时：

将

publishPackage

添加到我的

package.json

    "publishConfig": { "registry": "https://npm.pkg.github.com/" }

鉴定

    npm login --registry=https://npm.pkg.github.com/

发表

   npm publish

它调用此错误：

npm ERR! code E404
npm ERR! 404 Not Found - PUT https://npm.pkg.github.com/react-push-notify
npm ERR! 404
npm ERR! 404  'react-push-notify@0.2.0' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

这是我关于npm的第一个软件包，我弄不清发布到npm和从Github发布到npm有什么区别