问以字节为单位读取文件时不支持URI格式？

EN

  [Route("api/product/v1/displayimage")]
    [AllowAnonymous]
    [HttpPost]
    //[GZipCompression]
    public async Task<byte[]> DisplayImage([FromBody] FilesVM model)
    {
        try
        {
            var UrlBase = Url.Content(model.BaseURL);

            //var UrlBase = Url.Content("~/Images/Users/5-signs-march14");
            // MemoryStream workStream = new MemoryStream();
            //string contentType = MimeMapping.GetMimeMapping(fileName);
            byte[] byteInfo = System.IO.File.ReadAllBytes(UrlBase);
            return await Task.FromResult(byteInfo);
        }
        catch (Exception ex)
        {
            throw new HttpResponseException(HttpStatusCode.InternalServerError);
        }
    }