1e41f4b71Sopenharmony_ci# Bundle Management Subsystem Changelog 2e41f4b71Sopenharmony_ci## cl.bundlemanager.1 schema in the module.json File Changed 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ciIn the **module.json** file, the **name** attributes of the **module**, **ability**, and **extensionAbility** fields must start with a letter and contain only letters, digits, underscores (_), and dots (.). 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci**Change Impact** 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ciAfter an update to the new SDK version, the build fails if the **name** attributes of these fields do not meet the preceding requirements. 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**Key API/Component Changes** 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ciIn the **module.json** file, the **name** attributes of the **module**, **ability**, and **extensionAbility** fields must start with a letter and contain only letters, digits, underscores (_), and dots (.). 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci**Adaptation Guide** 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ciModify the **name** attributes for these fields accordingly to the new requirements.