api 14和15的android sdk系统映像大小错误

我尝试通过sdk管理器安装api 14和15的系统映像，我在日志中看到：

Parse XML:    http://developer.sonyericsson.com/edk/android/repository.xml
  Found EDK 2.0 by Sony Ericsson Mobile Communications AB, Android API 10, revision 1
Done loading packages.
Preparing to install archives
Downloading ARM EABI v7a System Image, Android API 15, revision 1
Download finished with wrong size. Expected 96280271 bytes, got 24895488 bytes.
Downloading ARM EABI v7a System Image, Android API 14, revision 2
Download finished with wrong size. Expected 99621822 bytes, got 49778688 bytes.
Done. Nothing was installed.

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我想也许你们的网络供应商的政治降低了规模？可能吗？我不这么认为。但是我现在不需要为ICS开发，所以这不是很重要