npm install error: authentication-sdk-2.0.34.tgz下载失败

[hanxiuping]

npm install npm error code ECONNREFUSED npm error syscall connect npm error errno ECONNREFUSED npm error FetchError: request to http://npm.ispeco.com/npm/@ispeco%2fauthentication-sdk failed, reason: connect ECONNREFUSED 172.16.12.20:80 npm error at ClientRequest. (C:\Users\Administrator\AppData\Roaming\npm\node_modules\npm\node_modules\minipass-fetch\lib\index.js:130:14)npm error at ClientRequest.emit (node:events:524:28) npm error at emitErrorEvent (node:_http_client:104:11) npm error at _destroy (node:_http_client:898:9) npm error at onSocketNT (node:_http_client:918:5) npm error at process.processTicksAndRejections (node:internal/process/task_queues:91:21) { npm error code: 'ECONNREFUSED', npm error errno: 'ECONNREFUSED', npm error syscall: 'connect', npm error address: '172.16.12.20', npm error port: 80, npm error type: 'system', npm error requiredBy: '.' npm error } npm error