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Visual C# OfficeOpenXml could not be found

Posted on 2011-09-21
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Last Modified: 2013-12-17
I got a setup file and source codes for a program.
The program created by the setup file runs fine.

But there are errors when using VS2010 to run the source codes, refer below.

What is the likely cause for the error,  do I need to install Open Office or get a dll?


Error	1	The type or namespace name 'OfficeOpenXml' could not be found (are you missing a using directive or an assembly reference?)	C:\Documents and Settings\User\Desktop\position monitoring\position monitoring\Source code\PositionMonitoring (2008)\PositionMonitoring (2008)\arrows\frmMain.cs	11	7	PositionMonitoring
Error	2	The type or namespace name 'OfficeOpenXml' could not be found (are you missing a using directive or an assembly reference?)	C:\Documents and Settings\User\Desktop\position monitoring\position monitoring\Source code\PositionMonitoring (2008)\PositionMonitoring (2008)\arrows\frmExcelExport.cs	13	7	PositionMonitoring
Error	3	The type or namespace name 'OfficeOpenXml' could not be found (are you missing a using directive or an assembly reference?)	C:\Documents and Settings\User\Desktop\position monitoring\position monitoring\Source code\PositionMonitoring (2008)\PositionMonitoring (2008)\arrows\frmExcelExport.cs	14	7	PositionMonitoring
Error	4	The type or namespace name 'OfficeOpenXml' could not be found (are you missing a using directive or an assembly reference?)	C:\Documents and Settings\User\Desktop\position monitoring\position monitoring\Source code\PositionMonitoring (2008)\PositionMonitoring (2008)\arrows\frmExcelExport.cs	15	7	PositionMonitoring
Warning	5	The primary reference "EPPlus, Version=2.7.0.1, Culture=neutral, PublicKeyToken=ea159fdaa78159a1, processorArchitecture=MSIL" could not be resolved because it has an indirect dependency on the framework assembly "WindowsBase, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" which could not be resolved in the currently targeted framework. ".NETFramework,Version=v2.0". To resolve this problem, either remove the reference "EPPlus, Version=2.7.0.1, Culture=neutral, PublicKeyToken=ea159fdaa78159a1, processorArchitecture=MSIL" or retarget your application to a framework version which contains "WindowsBase, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".	PositionMonitoring

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Question by:Heidi_Lee
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Bob Learned earned 250 total points
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That might be referring to EPPlus.

Create advanced Excel 2007/2010 spreadsheets on the server
http://epplus.codeplex.com/
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