I'll provide a fix in the coming days - along with an upgrade to ES6 modules (for reductio, universe and crossfliter), if everything runs smoothly.
npm run test
> reductio@0.6.3 test /home/christophe/Programming/Polymer/litElement/reductio
> ./node_modules/karma/bin/karma start --browsers PhantomJS --single-run
/home/christophe/Programming/Polymer/litElement/reductio/node_modules/socket.io/lib/store.js:35
Store.prototype.__proto__ = EventEmitter.prototype;
^
TypeError: Cannot read property 'prototype' of undefined
at Object.<anonymous> (/home/christophe/Programming/Polymer/litElement/reductio/node_modules/socket.io/lib/store.js:35:42)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object.<anonymous> (/home/christophe/Programming/Polymer/litElement/reductio/node_modules/socket.io/lib/manager.js:16:13)
at Module._compile (internal/modules/cjs/loader.js:778:30)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! reductio@0.6.3 test: `./node_modules/karma/bin/karma start --browsers PhantomJS --single-run`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the reductio@0.6.3 test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /home/christophe/.npm/_logs/2019-10-03T14_03_31_075Z-debug.log
I'll provide a fix in the coming days - along with an upgrade to ES6 modules (for reductio, universe and crossfliter), if everything runs smoothly.