1# Update Error Codes 2<!--Kit: Basic Services Kit--> 3<!--Subsystem: Update--> 4<!--Owner: @RainyDay_005; @huangsiping3--> 5<!--Designer: @zhangzhengxue; @jackd320--> 6<!--Tester: @mamba-ting--> 7<!--Adviser: @zhang_yixin13--> 8 9> **NOTE** 10> 11> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 12 13## 11500104 IPC Error 14 15**Error Message** 16 17IPC error. 18 19**Description** 20 21This error code is reported if an exception is thrown during an IPC call. 22 23**Possible causes** 24 25An IPC API call failed. 26 27**Solution** 28 291. Check whether the update system ability has started. If not, start it. 302. Check whether IPC data conversion is normal. If not, check the conversion process. 31