Having trouble using API Key with retrofit get request I am new to retrofit. I need to use an API key to access this API to retrieve country data. I have placed my API key inside the header in place of MY_API_KEY. interface CountryApi { @Headers("api-key: MY_API_KEY") @GET("all") suspend fun getCountryData(): List } I get the following error when I run the project. 2022-07-07 18:27:31.768 6035-6035/com.example.countryapp1 E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.countryapp1, PID: 6035 retrofit2.HttpException:...