This is with a new React Native project. The first time I run the app, without editing anything except adding react-native-router-flux
"/Users/jneumann/Projects/portfolio/node_modules/react-native-router-flux/src/menu_burger.png: Unexpected Character '?' (1:0) at menu_burger.png:1:0

We haven't pushed a version compatible 0.26 to NPM yet. Go ahead and change your package.json to "react-native-router-flux": "aksonov/react-native-router-flux#0.26-wip",
Jawesome! That works now.
I have the same error with the latest version and latest react/react-native on an empty project
The solution was to quit the emulator _and_ the packager terminal and restart
my package.json is pointing to "react-native-router-flux": "^3.33.2" and @DominicTobias 's suggestion worked for me.
I am getting same error, while running the test with mocha. I also tried to use "react-native-router-flux": "aksonov/react-native-router-flux#0.26-wip" but no luck.
@nalwayaabhishek have you found a solution to your mocha tests? The suggestion by @hellogerard in #628 fixes my tests, but I don't know what (if any) negative effects it could have to silence the mockery warnings
For posterity, since I almost missed it scrolling through after being brought here on Google by this error message:
@DominicTobias's solution worked for me.
RN v0.33.0 and react-native-router-flux v3.35.0.
@DominicTobias 's solution worked for me.
Most helpful comment
The solution was to quit the emulator _and_ the packager terminal and restart