FIX: "Cannot connect to data source '*.xlsx'" error when you try to connect to a PowerPivot gallery workbook by using Report Builder 3.0 in SSRS 2008 R2 SharePoint integrated mode

Article ID: 2472573 - View products that this article applies to.
Microsoft distributes Microsoft SQL Server 2008 R2 fixes as one downloadable file. Because the fixes are cumulative, each new release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release.
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SYMPTOMS

Consider the following scenario:
  • You install the traditional Chinese edition of Microsoft SharePoint 2010 and of Microsoft SQL Server PowerPivot for SharePoint on a computer.
  • You install the traditional Chinese edition of Microsoft SQL Server 2008 R2 Reporting Services (SSRS 2008 R2).
  • You configure SSRS 2008 R2 to run in the SharePoint integrated mode.
  • You upload a PowerPivot workbook to the PowerPivot gallery, and then you click Generate Report Builder Report to start Report Builder 3.0.
  • You run the Matrix Wizard in the Report Builder 3.0, and then you try to connect to the PowerPivot workbook as the data source.
In this scenario, you cannot connect to the PowerPivot workbook, and you receive the following error message: 
Cannot connect to data source '*.xlsx'

Additionally, the PowerPivot Web service returns the following error message:
Cannot redirect the request to PowerPivot for SharePoint server. Internal error occurred. Please check SharePoint log to get the detailed information or contact server administrator.

Also, the following error message is logged in the Unified Logging Service (ULS) log:
EXCEPTION: System.ArgumentException: invalid CRLF character in the value. Argument name: value at System.Net.WebHeaderCollection.CheckBadChars(String name, Boolean isHeaderValue) at System.net.WebHeaderCollection.Set(String name, String value) at Microsoft.AnalysisServices.SharePoint.Integration.Redirector.RedirectService.RedirectRequest(Stream inStream)
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RESOLUTION

Cumulative update information

SQL Server 2008 R2

The fix for this issue was first released in Cumulative Update 6. For more information about how to obtain this cumulative update package for SQL Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base:
2489376
(http://support.microsoft.com/kb/2489376/ )
Cumulative Update package 6 for SQL Server 2008 R2
Note Because the builds are cumulative, each new fix release contains all the hotfixes and all the security fixes that were included with the previous SQL Server 2008 R2 fix release. We recommend that you consider applying the most recent fix release that contains this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
981356
(http://support.microsoft.com/kb/981356/ )
The SQL Server 2008 R2 builds that were released after SQL Server 2008 R2 was released
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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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REFERENCES

For more information about how to configure report server integration in SharePoint Central Administration, visit the following Microsoft Developer Network (MSDN) website: 
How to configure report server integration in SharePoint Central Administration
(http://technet.microsoft.com/en-us/library/bb326213.aspx)


For more information about how to create a matrix report, visit the following MSDN website: 
General information about how to create a matrix report
(http://technet.microsoft.com/en-us/library/ff519557.aspx)


For more information about the Incremental Servicing Model for SQL Server, click the following article number to view the article in the Microsoft Knowledge Base:
935897
(http://support.microsoft.com/kb/935897/ )
An Incremental Servicing Model is available from the SQL Server team to deliver hotfixes for reported problems
For more information about the naming schema for SQL Server updates, click the following article number to view the article in the Microsoft Knowledge Base:
822499
(http://support.microsoft.com/kb/822499/ )
New naming schema for Microsoft SQL Server software update packages
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/ )
Description of the standard terminology that is used to describe Microsoft software updates
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Properties

Article ID: 2472573 - Last Review: February 21, 2011 - Revision: 1.0
APPLIES TO
  • Microsoft SQL Server 2008 R2 Analysis Services
Keywords: 
kbqfe kbfix kbsurveynew KB2472573
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