1e41f4b71Sopenharmony_ci# Update Error Codes 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci> **NOTE** 4e41f4b71Sopenharmony_ci> 5e41f4b71Sopenharmony_ci> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ci## 11500104 IPC Error 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci**Error Message** 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ciIPC error. 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci**Description** 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciThis error code is reported if an exception is thrown during an IPC call. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Possible causes** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ciAn IPC API call failed. 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**Solution** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci1. Check whether the update system ability has started. If not, start it. 24e41f4b71Sopenharmony_ci2. Check whether IPC data conversion is normal. If not, check the conversion process. 25