NodeJS server throws “Updgrade Required” on loading pages even after being updated to latest npm version

问题

I have a node project developed with NodeJS version 5.4.x and NPM version with 3.3.12 on windows. When i tried to run the project after a Quite sometime now it throws "Upgrade Required" on page loaded(HTTP Error code - 426).

Then I have installed NodeJs with 5.5 Stable. And ran couple of commands like

> npm install npm -g
> npm cache clean -f
> npm update -g

And Npm version is upgraded to 3.5.3. And i ran the node js project on eclipse but still the issue persist. Need help. Thanks

回答1:

The issue happened because of the installation conflict between non-administrative and administrative server instance. The installation was done with administrator and somehow my instance was always working on non-administrative instance. With admin rights I'm able to resolve this.

来源：https://stackoverflow.com/questions/34924698/nodejs-server-throws-updgrade-required-on-loading-pages-even-after-being-updat