Hot reload not working: [react-router] You cannot change <Router routes>

When editing a component from the demo HomePage, I get this message in the console:

Warning: [react-router] You cannot change <Router routes>; it will be ignored

And the hot reload doesn’t happen. This is the full log after saving the file:

2017-04-14 19:00:04.559 client.js?102b:199 [HMR] bundle rebuilding
2017-04-14 19:00:04.861 client.js?102b:207 [HMR] bundle rebuilt in 283ms
2017-04-14 19:00:04.862 process-update.js?e13e:27 [HMR] Checking for updates on the server...
2017-04-14 19:00:04.900 index.js?e6ba:81 [React Transform HMR] Patching Root
2017-04-14 19:00:04.901 process-update.js?e13e:100 [HMR] Updated modules:
2017-04-14 19:00:04.901 process-update.js?e13e:102 [HMR]  - ./src/components/HomePage.js
2017-04-14 19:00:04.902 process-update.js?e13e:102 [HMR]  - ./src/routes.js
2017-04-14 19:00:04.902 process-update.js?e13e:102 [HMR]  - ./src/components/Root.js
2017-04-14 19:00:04.902 process-update.js?e13e:107 [HMR] App is up to date.
2017-04-14 19:00:04.903 browser.js?26d3:49 Warning: [react-router] You cannot change <Router routes>; it will be ignored

Node version: 7.8.0

npm version: 4.2.0

Operating system: macOS Sierra 10.12.4

Command line used: npm run setup, npm run start

[anton-k-git]

Here is temporary solution, if anyone needs this to be fixed right away:

<Router history={history} routes={routes} key={Math.random()}/>

[nickytonline]

Closing as the issue seems to be a React router issue.