1e41f4b71Sopenharmony_ci# File Subsystem Changelog 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci## cl.file.1 Change of Error Codes in @ohos.file.storageStatistics and @ohos.file.volumeManager Documents 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ciChanged the error code of "Unknown error" in all APIs in the API reference documents of the [@ohos.file.storageStatistics](../../../application-dev/reference/apis/js-apis-file-storage-statistics.md#) and [@ohos.file.volumeManager](../../../application-dev/reference/apis/js-apis-file-volumemanager.md#) modules. The error code returned is different from the error code in the d.ts file. 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ciBefore the change, the error code of "Unknown error" is **13900032**. 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ciAfter the change, the error code of "Unknown error" is **13900042**. 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_ci**Change Impact** 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ciIn the code, **13900042** is returned for "Unknown error" from the first version. The error code of ""Unknown error" is incorrect in the d.ts file and API Reference documents. 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ciFor applications that have special processing on "13900032 Unknown error", change the error code to **13900042**. 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci**Key API/Component Changes** 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ciAll APIs in the @ohos.file.storageStatistics and @ohos.file.volumemanager modules are involved. 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci**Adaptation Guide** 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ciFor applications that have special processing on "Unknown error", change the error code to **13900042**. 24