/**
 * Application custom errors.
 */
/** The id of the error type. */
export type TYPE = 'file_configuration' | 'server_error' | 'missing_remote_url';
/**
 * The base type for all custom application errors;
 * stores the `original` error, if any (otherwise returns `null`).
 */
export declare class AppError extends Error {
    readonly original: Error | null;
    readonly type: TYPE;
    constructor(original: Error | null, type: TYPE, message: string);
}
/**
 * Tells if the given value is an application error.
 */
export declare const isAppError: (error: any) => error is AppError;
/**
 * @param original The original file access error
 * @param path The path of the configuration file
 */
export declare class FileConfigurationError extends AppError {
    readonly path: string;
    constructor(original: Error, path: string);
}
/**
 * @param original The original error thrown when starting the server.
 */
export declare class ServerError extends AppError {
    constructor(original: Error);
}
export declare class MissingRemoteURLError extends AppError {
    constructor();
}