FIX: Data tip is not displayed for a local variable when you debug a Visual C++ 2010 native application in Visual Studio 2010

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Article ID: 2452649 - View products that this article applies to.
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SYMPTOMS

When you are debugging a Microsoft Visual C++ 2010 native application in Microsoft Visual Studio 2010, the following issues occur:
  • When you move the mouse to a local variable, a data tip is not displayed for the local variable.
  • When you try to check the value of a local variable by using the Watch window, the value of the local variable is replaced by the following error message:
    CXX0017: Error: symbol '' not found.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have Microsoft Visual Studio 2010 installed.

Restart requirement

If no instance of Microsoft Visual Studio 2010 is being used, you do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
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File nameFile versionFile sizeDateTimePlatform
C2.dll16.0.30319.3912,508,60820-Nov-201012:09x86
C2.dll16.0.30319.3912,588,99220-Nov-201012:09x86
C2.dll16.0.30319.3912,629,44020-Nov-201012:09x86
C2.dll16.0.30319.3912,975,55220-Nov-201012:09x64
C2.dll16.0.30319.3917,351,61620-Nov-201012:09IA-64

STATUS

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

WORKAROUND

To work around this issue, declare the local variable in an upper level of the function.

Properties

Article ID: 2452649 - Last Review: December 30, 2010 - Revision: 1.0
APPLIES TO
  • Microsoft Visual Studio 2010 Professional
  • Microsoft Visual Studio 2010 Ultimate
Keywords: 
kbqfe kbhotfixserver kbfix kbexpertiseadvanced kbsurveynew KB2452649

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