Property 'state' of type '{ [key: string]: MappingType; } | undefined' is not assignable to string index type 'string | number | MappingType'

Issue type

I’m submitting a … (check one with “x”)

• bug report

Issue description

Current behavior: I’m attempting to use react-native-ui-kitten which uses @eva-design/eva and after I follow the setup instructions from here, my typescript build now fails due to a compilation error in schema.d.ts:

As a workaround, anyone using UI Kitten/Eva-Design with Typescript will have to toggle the skipLibCheck flag to true in their tsconfig.json.

Expected behavior: Importing @eva-design/eva should not break a tsc build

Steps to reproduce:

1. Initialize a new react native typescript application by running react-native init TempApp --template typescript (assuming you have the react-native cli installed)
2. Follow the react-native-ui-kitten setup instructions from here
3. Run tsc -p ./tsconfig.json to execute the typescript build

Other information:

Package versions

@eva-design/eva: 1.0.0
react: 16.8.3
react-native: 0.59.8
react-native-ui-kitten: 4.0.1

[techgerm]

@artyorsh New versions work like a charm and I was able to remove that flag. Thanks again for your quick support! 💯

[32penkin]

Hello @germanp173! Thank you for letting us know about such issues. Please try to update ‘react-native-ui-kitten’ package to the 4.0.3 version. I guess it was fixed in this release.