Node菜鸟：npm publish发布包时出现E403错误，求大神指教

发布包时出现E403错误提示

拿去翻译后说没有权限发布包，以下是package.json文件

{ "name": "testpackage", "version": "1.0.0", "description": "this is a test", "main": "./lib/package.js", "directories": { "doc": "doc", "test": "test" }, "scripts": { "test": "echo "Error: no test specified" && exit 1" }, "keywords": [ "test" ], "author": "marico", "license": "ISC" }

在网上搜索过，有说是包被别人发布过，要修改了package.json文件的name，我试过还是不行，跪求会的大神指教