Use json file string to enum shows Type 'string' is not assignable to type 'number' as required for computed enum member values

I have a enum like this:

export enum AccountSettings {  accountManagement = "Account management",  managementOfRelatives = 'Management of relatives',}

Then I have a en.json file, I want to use them for my enum data

{"account_management": "Account management","management_of_relatives": "Management of relatives",}

Then use it get the error:

import en from './en.json';export enum AccountSettings {  accountManagement = en.account_management, // shows Type 'string' is not assignable to type 'number'  managementOfRelatives = 'Management of relatives',}

How do I use en.json data to enum ?