Getting Error: "React Native is not installed" - react-native

Question

enter image description here
When I'm going to execute the command expo start, give me the following error, I'm starting to work with react native and I don't manage much, what can it be?
app.json
{
"expo": {
"name": "Project",
"slug": "Project",
"version": "1.0.0",
"orientation": "portrait",
"sdkVersion": "35.0.0",
"icon": "./assets/icon.png",
"splash": {
"image": "./assets/splash.png",
"resizeMode": "contain",
"backgroundColor": "#ffffff"
},
"updates": {
"fallbackToCacheTimeout": 0
},
"assetBundlePatterns": [
"**/*"
],
"ios": {
"supportsTablet": true
},
"web": {
"favicon": "./assets/favicon.png"
}
}
}
package.json
{
"main": "node_modules/expo/AppEntry.js",
"scripts": {
"start": "expo start",
"android": "expo start --android",
"ios": "expo start --ios",
"web": "expo start --web",
"eject": "expo eject"
},
"dependencies": {
"expo": "^35.0.0",
"react": "16.8.3",
"react-native": "https://github.com/expo/react-native/archive/sdk-35.0.0.tar.gz",
"expo-status-bar": "^1.0.2",
"react-dom": "~16.11.0",
"react-native-web": "~0.11.7"
},
"devDependencies": {
"#babel/core": "^7.8.6",
"babel-preset-expo": "~8.1.0"
},
"private": true
}
new error
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folders
I changed the files in the folder
\node_modules\metro-config\src\defaults\blacklist.js
in
var sharedBlacklist = [
/node_modules[/\\]react[/\\]dist[/\\].*/,
/website\/node_modules\/.*/,
/heapCapture\/bundle\.js/,
/.*\/__tests__\/.*/
];
for
var sharedBlacklist = [
/node_modules[\/\\]react[\/\\]dist[\/\\].*/,
/website\/node_modules\/.*/,
/heapCapture\/bundle\.js/,
/.*\/__tests__\/.*/
];
now this error is showing up
this last error was solved by installing the expo directly on the emulator.

Answer 1

As it is shown in the error, React Native is not installed. So,
(1) npm install
(2) npm start
That's it. If you still get any problem, please update your question by containing your app.json file content.
UPDATE:
I think the problem is with your sdk version. Please try changing the version of the sdk version.
(1) replace your package.json with the following content. (Copy and Paste)
{
"main": "node_modules/expo/AppEntry.js",
"scripts": {
"start": "expo start",
"android": "expo start --android",
"ios": "expo start --ios",
"web": "expo start --web",
"eject": "expo eject"
},
"dependencies": {
"expo": "~37.0.3",
"expo-status-bar": "^1.0.2",
"react": "~16.11.0",
"react-dom": "~16.11.0",
"react-native": "https://github.com/expo/react-native/archive/sdk-37.0.1.tar.gz",
"react-native-web": "~0.11.7"
},
"devDependencies": {
"#babel/core": "^7.8.6",
"babel-preset-expo": "~8.1.0"
},
"private": true
}
Above, I've changed the sdk version from 38 to 37.
(2) Delete node_module, and .expo folders if they have been created in your project root directory.
(3) npm install
(4) npm start
That's it. It should work now!

Answer 2

try changing the source of react-native in your package.json by changing this line:
"react-native": "https://github.com/expo/react-native/archive/sdk-38.0.2.tar.gz",
for this
"react-native": "^0.63.0",