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ERROR_DS_INSTALL_NO_SCH_VERSION_IN_INIFILE
The schema version is missing from schema.ini.
ERROR_DS_INSTALL_NO_SCH_VERSION_IN_INIFILE is Win32 error 8512 (0x00002140) in Active Directory Domain Services (AD DS).
What to verify
Verify whether the installation uses a valid schema.ini whose SCHEMA section contains the expected objectVersion entry. Check schema.ini path, size, and checksum, SCHEMA section contents, and installation source and Windows build.
Likely causes
- schema.ini is missing or truncated.
- the SCHEMA section lacks objectVersion.
- the wrong file version was staged.
- servicing or copying altered the file.
Troubleshooting steps
- Collect schema.ini path, size, and checksum.
- Record SCHEMA section contents.
Handling, retry, and recovery
Restore the matching installation file from trusted media or repair the component source, then restart the supported deployment workflow.
Related errors
ERROR_DS_BAD_HIERARCHY_FILE concerns hierarchy data; this code specifically identifies missing schema version metadata in schema.ini
Example
A customized deployment image contains an incomplete schema.ini. Replacing it with the matching build file lets promotion validate the schema version.
References
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