自建服务器OTA升级时出现error bin file错误怎么解决？

  自建服务器OTA升级时出现error bin file错误。
     1 烧录信息
        spi:40M   spi mode: DIO FlahSize:6 4MB-C1  
     2 固件编译信息
        user1.4096.new.6.bin
        user2.4096.new.6.bin
        注，文件上传至服务器有修改文件名。
     3 固件升级信息
   
system_upgrade_start
upgrade_connect 34752
upgrade_connect_cb
pusrdata = HTTP/1.1 200 OK
Date: Sat, 23 Jun 2018 06:54:59 GMT
Server: Apache/2.4.27 (Win64) OpenSSL/1.1.0f PHP/5.6.31
X-Powered-By: PHP/5.6.31
Set-Cookie: PHPSESSID=15novfbebrqgfof8r97c14rgi4; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Ranges: bytes 344116
Content-Length: 344116
Content-Disposition: attachment; filename=ESP8266_v1.5.0_201806231412_userbin2.bin
Content-Type: application/octet-stream


sumlength = 344116
sec_block 85
.....................................................................................upgrade_get_sum_disconcb 32784
erase sector=129 ok
erase sector=130 ok
erase sector=131 ok
erase sector=132 ok
erase sector=133 ok
erase sector=134 ok
erase sector=135 ok
erase sector=136 ok
erase sector=137 ok
erase sector=138 ok
erase sector=139 ok
erase sector=140 ok
erase sector=141 ok
erase sector=142 ok
erase sector=143 ok
erase sector=144 ok
erase sector=145 ok
erase sector=146 ok
erase sector=147 ok
erase sector=148 ok
erase sector=149 ok
erase sector=150 ok
erase sector=151 ok
erase sector=152 ok
erase sector=153 ok
erase sector=154 ok
erase sector=155 ok
erase sector=156 ok
erase sector=157 ok
erase sector=158 ok
erase sector=159 ok
erase sector=160 ok
erase sector=161 ok
erase sector=162 ok
erase sector=163 ok
erase sector=164 ok
erase sector=165 ok
erase sector=166 ok
erase sector=167 ok
erase sector=168 ok
erase sector=169 ok
erase sector=170 ok
erase sector=171 ok
erase sector=172 ok
erase sector=173 ok
erase sector=174 ok
erase sector=175 ok
erase sector=176 ok
erase sector=177 ok
erase sector=178 ok
erase sector=179 ok
erase sector=180 ok
erase sector=181 ok
erase sector=182 ok
erase sector=183 ok
erase sector=184 ok
erase sector=185 ok
erase sector=186 ok
erase sector=187 ok
erase sector=188 ok
erase sector=189 ok
erase sector=190 ok
erase sector=191 ok
erase sector=192 ok
erase sector=193 ok
erase sector=194 ok
erase sector=195 ok
erase sector=196 ok
erase sector=197 ok
erase sector=198 ok
erase sector=199 ok
erase sector=200 ok
erase sector=201 ok
erase sector=202 ok
erase sector=203 ok
erase sector=204 ok
erase sector=205 ok
erase sector=206 ok
erase sector=207 ok
erase sector=208 ok
erase sector=209 ok
erase sector=210 ok
erase sector=211 ok
erase sector=212 ok
erase sector=213 ok

ALL=85 sectors erase ok!
upgrade_connect_cb
sumlength = 344116
upgrade file download start.
error bin file
totallen = 2368
upgrade_check
user_esp_platform_upgrade_failed


搜索过之前的topic，回复说是Espressif Cloud 正在更新调试。