“RCTBundleURLProvider.h” file not found - AppDelegate.m

Question

I am trying to run my React Native app in XCode and I keep getting this error. I cannot figure out how to resolve the issue. Any suggestions?

Screen Shot of Error in

Answer 1

In the base dir of the project I run:

node_modules/react-native/packager/packager.sh --reset-cache

Which resulted in:

Scanning 554 folders for symlinks in /Users/..../work/..../react_tutorial/AwesomeProject/node_modules (15ms)
 ┌────────────────────────────────────────────────────────────────────────────┐
 │  Running packager on port 8081.                                            │
 │                                                                            │
 │  Keep this packager running while developing on any JS projects. Feel      │
 │  free to close this tab and run your own packager instance if you          │
 │  prefer.                                                                   │
 │                                                                            │
 │  https://github.com/facebook/react-native                                  │
 │                                                                            │
 └────────────────────────────────────────────────────────────────────────────┘
Looking for JS files in
   /Users/..../work/...../react_tutorial/AwesomeProject

Loading dependency graph... ERROR  Packager can't listen on port 8081
Most likely another process is already using this port
Run the following command to find out which process:

lsof -i :8081

I found that package manager can't run when another packager process is running.

I found the process running with:

lsof -i :8081

Than I kill 9 ... the process.

After than I closed Xcode, run:

npm install

And started Xcode again, from this moment everything work as expected!!