TypeError: null is not an object (evaluating '_module.RNImageColors.getColors') about react-native-image-colors HOT 15 CLOSED

Thanks a lot, it's working now !

So what I did, in two separate terminals and in this order:

• expo run:android
• npx expo start --dev-client

from react-native-image-colors.

hey, I think you missed a step from the instructions. You have to run expo run:ios or expo run:android after expo prebuild.

from react-native-image-colors.

But "expo run:ios" can be ran only on a Mac no ? then we lose the advantage of using Expo

from react-native-image-colors.

yea that is right. but that is the point of the prebuild command. unfortunate because this library contains custom native code so we need to create a new "expo dev client" which has this new native code.

I'm not sure but I think eas build might have some kind of workflow for windows users to develop for iOS (I heard they have a free tier but I cant help here).

from react-native-image-colors.

Thanks, so it means that I cannot access the app via Expo Go ?

from react-native-image-colors.

Also when doing these steps on a mac: I get "Failed to install CocoaPods CLI with gem" .. should I run "npx pod-install" before running "npx expo prebuild" command ?

from react-native-image-colors.

I think that is run automatically as part of the prebuild command.
The error hints to me that your environment could be misconfigured. If this is the first time you're building native code on this machine (even if it's with expo) I think you need to make sure to do the environment setup here for 'React Native CLI > MacOS > iOS'.

from react-native-image-colors.

I have the React Native CLI option, I get the same error. Did you manage to run it on IOS ? if yes could you send me the compiled app ?

from react-native-image-colors.

sorry, but thats not a reasonable request. please try to follow what I suggested in my previous comment for configuring your environment or try to search for the errors your experiencing in setting up your app.
in any case I think these issues are outside the scope of this library and we should close this issue.

from react-native-image-colors.

Hello again,

I have created a repo with all the instruction (README.md) to reproduce the error: https://github.com/aymeric75/ExpoProject

Thank you

from react-native-image-colors.

hey! I tried the project but couldn't do this (from the README):

Then, once the app starts go to select an image on the left column

this is what I see once the app starts:

from react-native-image-colors.

Sorry I am going to update the App.js now

from react-native-image-colors.

Done, thanks !

from react-native-image-colors.

hey, so I was able to follow the instructions but I didn't run into the error again. however I think I got the problem you're having now. I think you should not use npx expo start but npx expo start --dev-client instead. I assumed the app would launch automatically for you after running expo run:ios/expo run:android and you would skip expo start.

here is an image showing the difference. the app icon with an X underneath is the Expo Go app created with the npx expo start command. don't use this one anymore. since we are adding custom native code, what we need here is the custom dev client which got installed when we ran expo run:ios/expo run:android. now that it is installed, use npx expo start --dev-client from now on to start the dev server and open the app with your project name. hope this helps!

from react-native-image-colors.

Hey i am getting this error on Apple TV
TypeError: null is not an object (evaluating '_$$_REQUIRE(_dependencyMap[4], "./module").RNImageColors.getColors')
i am using react native cli

working platform

1. android mobile
2. android TV
3. iOS mobile

Libraries

1. "react-native-image-colors": "^1.5.1",
2. "react": "17.0.2",
3. "react-native": "npm:[email protected]",

Using this line of code
const result = await ImageColors.getColors(url, {
fallback: '#4d5152',
cache: false,
key: url,
})

Please help, i am stuck here.

from react-native-image-colors.