Error: Linking requires a build-time setting `scheme` in the project's Expo config (app.config.js or app.json)

Question

I created the project using react-native expo bare-workflow

npx create-expo-app --template bare-minimum

After creating the project, I tried to install expo-router to the project, everything is done according to the expo documentation, even added scheme in app.json file. But, this error pops in development build, everything works fine in expo go build.

WARN Linking requires a build-time setting scheme in the project's Expo config (app.config.js or app.json) for production apps, if it's left blank, your app may crash. The scheme does not apply to development in the Expo client but you should add it as soon as you start working with Linking to avoid creating a broken build. Learn more: https://docs.expo.dev/guides/linking/

ERROR Error: Linking requires a build-time setting scheme in the project's Expo config (app.config.js or app.json) for bare or production apps. Manually providing a scheme property can circumvent this error. Learn more: https://docs.expo.dev/guides/linking/, js engine: hermes

Thanks!

Answer 1

I have this same warning. Turn out I did not put "scheme": "yourapp" inside of "expo": { ... }. I placed it on the outside of it. Maybe you are doing the same thing.

It should look something like this.

{
    "expo": {
        ...snip...
        "scheme": "yourapp"
    }
...snip...
}