How to fix Error 571 on Windows Server 2025 / Windows 11

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Troubleshooting Guide: SQL Server Error 571 – “The Specified Attribute Value for %ls Is Invalid”

Why This Error Happens

Error 571 typically occurs when SQL Server encounters an invalid or out-of-range attribute value during a metadata operation, often related to column properties, computed column definitions, or extended property assignments. This can result from corrupted system catalog entries, an incompatible attribute value passed during a schema change (such as an unsupported data type conversion), or residual metadata left behind by a failed or interrupted DDL operation. In Windows Server 2025 / Windows 11 environments, this is frequently triggered after in-place upgrades where legacy attribute values are no longer valid under SQL Server 2025’s updated schema validation rules.

Step-by-Step Resolution Guide

Step 1: Identify the Exact Object Triggering the Error

  • Open SQL Server Management Studio (SSMS) and check the SQL Server Error Log via Management > SQL Server Logs.
  • Look for the full error text — the %ls placeholder will be replaced with the actual attribute name (e.g., a column, index, or property name) in the log.
  • Cross-reference the object using:
  SELECT * FROM sys.extended_properties WHERE major_id = OBJECT_ID('YourTableName');

Step 2: Run Database Consistency Checks

  • Open a query window and run:
  DBCC CHECKDB ('YourDatabaseName') WITH NO_INFOMSGS, ALL_ERRORMSGS;
  • Review the output for catalog corruption flags, particularly around system tables like sys.columns or sys.objects.
  • If corruption is detected, note the specific object ID and table for targeted repair.

Step 3: Validate and Correct the Offending Attribute

  • If the issue relates to an extended property or computed column, drop and recreate it with a valid value:
  EXEC sp_dropextendedproperty @name = 'YourPropertyName', @level0type = 'Schema', @level0name = 'dbo', @level1type = 'Table', @level1name = 'YourTableName';
  • Re-add the property using a value compliant with SQL Server 2025 schema constraints:
  EXEC sp_addextendedproperty @name = 'YourPropertyName', @value = 'ValidValue', @level0type = 'Schema', @level0name = 'dbo', @level1type = 'Table', @level1name = 'YourTableName';

Step 4: Update SQL Server and Windows Server Components

  • Navigate to Settings > Windows Update on Windows Server 2025 / Windows 11 and install all pending OS-level patches.
  • Apply the latest Cumulative Update (CU) for SQL Server 2025 via the Microsoft Update Catalog or SQL Server Installation Center.
  • Restart the SQL Server service after patching:
  Restart-Service -Name 'MSSQLSERVER' -Force

Step 5: Rebuild Corrupted Metadata (If Applicable)

  • If DBCC CHECKDB reports unrepairable catalog corruption, restore the affected database from the last known good backup.
  • Use RESTORE DATABASE YourDatabaseName FROM DISK = 'BackupPath' WITH REPLACE; in SSMS.
  • Validate backup integrity beforehand using RESTORE VERIFYONLY FROM DISK = 'BackupPath';.

Alternative or Verification Steps

  • After applying fixes, re-run the original DDL statement or query that triggered Error 571 to confirm it completes without exception.
  • If the error persists, enable Extended Events tracing (sp_server_diagnostics) to capture the exact call stack and attribute name for escalation to Microsoft Support with a detailed repro case.