Error Code Portal
MicrosoftWindows Installer messagesError code

2256

MSI message 2256: Database: [2] GenerateTransform/Merge: Number of primary keys in base table does not match reference table.…

Alternative forms: 0x000008D0 · 0x8D0

What does this code mean?

Code 2256 · An issue reported by Windows Installer messages.

Official explanation · Original text

Database: [2] GenerateTransform/Merge: Number of primary keys in base table does not match reference table. Table: [3].

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Windows Installer Error Messages (for Developers) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

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