问题
After upgrading from react-native 0.26 to 0.29 (and running react-native upgrade), I'm getting the following error in the android debugger:
Got JS Exception: ReferenceError: Can't find variable: process
And this error message in the android emulator
java.lang.RunTimeException: ReferenceError: can't find variable process
(http://10.0.2.2:8081/index.android.bundle (...)
I haven't changed any of my app javascript since upgrading, and everything ran without errors before so I'm assuming the problem isn't in the javascript, but rather the change of react versions has removed the 'process' variable?
Even loading an empty index file (a single react component that does nothing) still results in the same error.
回答1:
Had the same issue:
java.lang.RuntimeException: java.util.concurrent.ExecutionException:
java.lang.RuntimeException: ReferenceError: Can't find variable: process
Fixed by upgrading the React to the latest compatible version, 15.2.1 in my case:
npm i react@15.2.1 --save
回答2:
I had this issue, it turns out my problem was that I didn't stop and restart the packager after upgrading react-native.
来源：https://stackoverflow.com/questions/38446937/got-js-exception-referenceerror-cant-find-variable-process