locals[0] does not appear to be a `module` object with Hot Module Replacement API enabled.

I’m getting the following error after enabling hot reloading (iOS Simulator and Device):

locals[0] does not appear to be a `module` object with Hot Module replacement API enabled. You should disable react-transform-hmr in production by using `env` section in Babel configuration. See the example in README: https://github.com/gaearon/react-transform-hmr

proxyReactComponents
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:5218:16
<unknown>
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:1475:1078
loadModuleImplementation
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:127:8
guardedLoadModule
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:63:37
_require
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:54:18
<unknown>
    index.ios.bundle?platform=ios&dev=false&minify=false&hot=true:77149:9

This is after a fresh install of 0.28 using react-native init Home, upgrading React and RN to ^15.2.0-rc.1 and ^0.29.0-rc.0 respectively, then running react-native upgrade. Node version is 6.1.0 but also did it in 4.

[codebymikey]

For me this error occurs in Dev mode, when “JS Dev Mode” is disabled, but “Enable Hot Reloading” is also enabled.

Disabling “Enable Hot Reloading” fixes it, but sometimes you want hot reloading without JS dev mode enabled.

[fabriziomoscon]

Hi guys, Suddenly my hot reloading stopped working with this error message. It turned out that I set __DEV__=false in the Development Menu by mistake. Checking the tick back gets rid of the error and Hot Reload works as before.

I understand that this is not a good compromise if you want to develop with hot reloading and __DEV__=false, but in my case I had just triggered it by mistake so hopefully this comment could still help somebody.