Wednesday, March 23, 2011

UUID Already Exists Error When Registering a Virtual Hard Disk

When registering a hard disk with Oracle Virtual Box, if you get an error like the following:


It means you need to change the UUID of the disk.  This generally happens if you have cloned a disk.  To correct this, you need to run the VBoxManage program which comes with Virtual Box.  This is generally located in the C:\Program Files\Oracle\VirtualBox directory.   Open up a command prompt in this directory and do the following (filling in the name of your hard disk file where applicable:

VBoxManage internalcommands sethduuid c:\directory\MyHDFile.vhd

Tuesday, March 22, 2011

Invalid Target Namespace When Deploying a Report to SQLServer 2008

If you get an error like the following when deploying a report to SQLServer ReportingServices 2008, it is usually because the report was created in a design environment setup for SQL Server 2008 R2, but your server is SQL Server 2008 R1 (I know, that’s not what it’s called, but you know what I mean).

The report definition is not valid. Details: The report definition has an invalid target namespace '' which cannot be upgraded. (rsInvalidReportDefinition)

To fix this error:

  • Edit the report RDL (Code View as it is called in BIDS).
  • Replace the Report header with the following:
    <Report xmlns:rd="" 

  • Remove the <ReportSections> and <ReportSection> tags from the report. Note, remove the tags only.  Leave all content inside the tag.  Don’t forget to remove the closing tags for each of these.
  • Save the report.  You should now be able to upload it.