Unable to resolve module react/lib/ReactUpdates

Question

I'm cloning a proyect:

The steps are:

npm i

react-native link

When i run it

react-native run-ios

i have a problem with

RCTWebSocket

library. This problem is easy to resolve if you search a little just need remove 2 compiler flags, in

Custom Compiler Flags

.

Later just i run again

react-native run-ios

and works fine, but when the app is open, show the next error:

Searching i found that is related to

upgrade

, source here

but i'm using that command and not works.

When this command is executed, it starts showing me some overrides to some files and at the end of this process, the problem persists.

My react info:

react-native-cli: 1.0.0

react-native: 0.32.1

I'm running in

Xcode 8

and ios

10.0

PDTA: When I start a new project works perfect

UPDATES:

When clone on another mac works, I am ensuring to have the same versions of both xcode and node.

Could it be some mac configuration problem?

The only difference between the 2 macs is the cli version:



`react-native-cli: 1.1.0` --> my mac

`react-native-cli: 1.2.0` --> the other mac

Will this be enough to cause all this problem?

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Answer 1

The problem is most likely that you are using React 15.4.x instead of 15.3.x. One of the changes between 15.3 and 15.4 was that many of the modules under react/lib were moved to react-dom/lib, which is why the packager can't find react/lib/ReactUpdates.

Ensure that your package.json file locks React to 15.3.x:

"dependencies": {
  "react": "~15.3.2"
}

Then delete your node_modules folder and run yarn or npm install again. Verify that you installed React 15.3.x:

$ npm ls react
app@1.0.0 /code/app
└── react@15.3.2

Last, restart the React Native server and load your bundle again.

Unable to resolve module react/lib/ReactUpdates

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