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  • Max 2 posts 71 karma points
    Aug 10, 2017 @ 14:13

    Help: Error when upgrading Umbraco from 7.1.3 to 7.6.5

    Hi, I get this error when trying to upgrade. Is there any workaround? I use Nuget

    ERROR: The database configuration failed with the following message: An explicit DROP INDEX is not allowed on index 'umbracoNode.IXumbracoNodeUniqueID'. It is being used for UNIQUE KEY constraint enforcement. Please check log file for additional information (can be found in '/AppData/Logs/UmbracoTraceLog.txt')

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