Download or clone the repository to your computer.
Then run the command npm install
Then npm install electron@latest -g
After that try to run the app using electron . from the root folder of the app probably you'll endup with error. Please review that error and fix it if it's from your end.
Once that is fixed install electron-builder through npm install electron-builder -g and npm install electron-builder --save-dev.
Once completed with this run the electron-builder with electron-builder -w this is for windows.
If the issue can't be fixed then just downgrade the electron and jsreport to the below specified versions:
electron v1.7.13 and jsreport v1.10.0.