Expo: null is not an object (evaluating '_reactNativeWifiReborn.default.getCurrentWifiSSID')

[prokis65]

Hi, following instructions, I tried to test this lib in my expo project:

import WifiManager from "react-native-wifi-reborn";

... WifiManager.getCurrentWifiSSID().then( ssid => { console.log("Your current connected wifi SSID is " + ssid); }, () => { console.log("Cannot get current SSID!"); } ); ...

but have the following error:

null is not an object (evaluating '_reactNativeWifiReborn.default.getCurrentWifiSSID')

• http://192.168.0.102:19001/node_modules%5Cexpo%5CAppEntry.bundle?platform=android&dev=true&minify=false&hot=false:297983:47 in cmd_activateModule$

What to do?

Regards

[Rapsssito]

@prokis65, thanks for the feedback! Is your issue related to #35?

[prokis65]

Hi, it looks like I can't import WifiManager correctlly. Any use of WifiManager in my code ends in error (null is not an object (evaluating '_reactNativeWifiReborn.default.getCurrentWifiSSID'))

[Rapsssito]

@prokis65, which steps did you follow for the installation? Could you provide your RN version, OS, react-native-wifi-reborn version, etc.?

[prokis65]

bellow find my package.json, please. I is not a fresh project but was created by expo init. I added react-native-wifi-reborn by npm install react-native-wifi-reborn --save, and tried also react-native link react-native-wifi-reborn.

{ "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": { "@aws-amplify/api": "^2.1.5", "@aws-amplify/auth": "^2.1.5", "@aws-amplify/pubsub": "^2.1.6", "@react-native-community/masked-view": "0.1.5", "@react-native-community/netinfo": "4.6.0", "@react-native-community/slider": "^2.0.8", "buffer": "^5.5.0", "expo": "~36.0.2", "expo-permissions": "~8.0.0", "hashids": "^2.2.1", "memoize-one": "^5.1.1", "native-base": "^2.13.8", "react": "~16.9.0", "react-dom": "~16.9.0", "react-native": " https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz", "react-native-gesture-handler": "~1.5.0", "react-native-hide-show-password-input": "^1.1.0", "react-native-reanimated": "~1.4.0", "react-native-render-html": "^4.2.0", "react-native-safe-area-context": "^0.6.0", "react-native-screens": "2.0.0-alpha.12", "react-native-svg": "9.13.3", "react-native-web": "~0.11.7", "react-native-webview": "7.4.3", "react-native-wifi-reborn": "^3.0.0", "react-navigation": "^4.1.0", "react-navigation-drawer": "^2.3.3", "react-navigation-stack": "^2.0.16" }, "devDependencies": { "@babel/core": "^7.0.0", "@types/react": "~16.9.0", "@types/react-native": "~0.60.23", "babel-preset-expo": "~8.0.0", "typescript": "~3.6.3" }, "private": true }

czw., 19 mar 2020 o 11:22 Rodrigo Martin notifications@github.com napisał(a):

@prokis65 https://github.com/prokis65, which steps did you follow for the installation? Could you provide your RN version, OS, react-native-wifi-reborn version, etc.?

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/JuanSeBestia/react-native-wifi-reborn/issues/52#issuecomment-601101358, or unsubscribe https://github.com/notifications/unsubscribe-auth/AEXRBEARYZ6MW7ZVDFJK2PLRIHW5LANCNFSM4LNVRU3Q .

[Rapsssito]

@prokis65, I don't know about Expo, but I think you may have to eject the project before installing react-native-wifi-reborn.

[Rapsssito]

@prokis65, could you try two things?

• First try with cd android and run ./gradlew clean.
• If it doesn't work try to reinstall your node_modules.

[olegz-codefresh]

I have same problem. Anyone knows how to solve it? Few things: 1) ACCESS_FINE_LOCATION permissions is granted 1) reinstalling node_modules didn't help 2) similar error with others wifi/networks npm modules

[eliaslecomte]

Emulator or device? Android or iOS?

[kilisoria]

Hi Guys, I'm having same error using iOS emulator. iOS 13. Anyone has some idea?

[eliaslecomte]

Hi Guys, I'm having same error using iOS emulator. iOS 13. Anyone has some idea?

This doesn't work in an emulator?

[rogerespinoza]

No, it works for me in android studio emulator, since I install the dependency.

[rogerespinoza]

This is the error message I get when I try to install.

[wathui99]

Hi, this error will be solved if you guys eject to expokit https://docs.expo.io/expokit/eject/

[rogerespinoza]

Hello, in the documentation you specify that Expokit is deprecated, but I don't know where the problem originates, since I tried to add the dependency, in a project created with $ npx react-native init exapleProyect giving me the same error. in reactNative @ 0.63.1 version

[Rapsssito]

@prokis65, could you try two things?

* First try with `cd android` and run `./gradlew clean`.

* If it doesn't work try to reinstall your `node_modules`.

If you are using iOS, make sure to clean the build cache data. Also, beware that React Native on iOS do not work well with WiFi changes (more info here).

[rogerespinoza]

Thank you, if it worked for me clearing the gradlew cache.