@shopify/polaris/esnext/utilities/errors.js

Shopify’s product component library

export class MissingAppProviderError extends Error {
    constructor(message = '') {
        super(`${message ? `${message} ` : message}Your application must be wrapped in an <AppProvider> component. See https://polaris.shopify.com/components/structure/app-provider for implementation instructions.`);
        this.name = 'MissingAppProviderError';
    }
}