The argument type 'void Function(DioError)' can't be assigned to the parameter type 'void Function(DioError, ErrorInterceptorHandler)?'
initializeInterceptor(){ _dio.interceptors.add(InterceptorsWrapper( onError: (error, errorInterceptorHandler ){ print(error.message); }, onRequest: (request, requestInterceptorHandler){ print("${request.method} | ${request.path}"); }, onResponse: (response, responseInterceptorHandler) { print('${response.statusCode} ${response.statusCode} ${response.data}'); } )); }