> Node Sass could not find a binding for your current environment: Windows 64-bit with Node.js
The reason for this is that the Node version does not match the node-sass version. Due to the upgrade of the node version, the node-sass version in the original project is too low.
You can win + R to enter cmd and press Enter
View the current node version
View the version of Node-sass in the project
View the correspondence between node and node-sass versions
For the corresponding version of node, see 
https://www.npmjs.com/package/node-sass
It can be seen that the current node-sass version is 4.0.0, which is too low.
Node specified version download address https://nodejs.org/dist/
solution:
npm rebuild node-sass
Execute after execution
npm update
Restart the project to solve it