I have noticed that you have wrong folder structure for you source files package. I have downloaded version 8 and again vue files were referring to jqwidgets folder which didn’t exists, and I had to create it, move all file in to it, plus globalisation folder too.
The Vue demos require installation of NPM packages. Each Vue demo has package.json. To run a demo, you can to do that:
Steps to run a demo.
1. Open a demo folder. Example: \bargauge\addandremovevalues in Command prompt
2. Type "npm install" to install all required node_modules.
3. Type "npm start" to build the demo.
4. Run the index.htm from localhost.
This information is also available ReadMe.txt file of the demos/vue.js of the download package.