<div>
You are using (including) two header files which both contain the same symbol (IDocument) defined.<br />
<br />
You have to decide which one is correct and remove the other.
</div>


You are using (including) two header files which both contain the same symbol (IDocument) defined.

You have to decide which one is correct and remove the other.

<div>
Zoppo: your solution worked. thanks!
</div>


<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I am seeing the error below and my suspicion is that it is happening because there is no name space specified for my own IDocument' definition.<br />
<br />
Any idea how to fix this? Is there a way to tell which namespace a particular line is actually in? There are so many levels of includes that the name space information is obscured.<br />
<br />
&nbsp;<b>1&gt;c:\companybuild\companyf<wbr />ilter\rele<wbr />ase\_inter<wbr />mediate\au<wbr />tomation\a<wbr />d20.tlh(12<wbr />4): error C2872: 'IDocument' : ambiguous symbol<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;could be 'c:\companybuild\companyfi<wbr />lter\relea<wbr />se\_interm<wbr />ediate\aut<wbr />omation\ad<wbr />20.tlh(98)<wbr /> : IDocument'<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;or &nbsp; &nbsp; &nbsp; 'C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\atlmfc\include\atl<wbr />handler.h(<wbr />161) : ATL::IDocument'<br />
</b>
</div>
</div>


Hello,

I am seeing the error below and my suspicion is that it is happening because there is no name space specified for my own IDocument' definition.

Any idea how to fix this? Is there a way to tell which namespace a particular line is actually in? There are so many levels of includes that the name space information is obscured.

 1>c:\companybuild\companyfilter\release\_intermediate\automation\ad20.tlh(124): error C2872: 'IDocument' : ambiguous symbol
                 could be 'c:\companybuild\companyfilter\release\_intermediate\automation\ad20.tlh(98) : IDocument'
                 or       'C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\atlmfc\include\atlhandler.h(161) : ATL::IDocument'


Why am I seeing with20113: C2872: 'IDocument' : ambiguous symbol

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.