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Hi,<br />
How to correct<br />

<pre><code id="code-10-28959533-1">Error	2	The type or namespace name 'Packaging' does not exist in the namespace 'System.IO' (are you missing an assembly reference?)</code></pre>
<br />
due to this line?<br />
<br />

<pre><code id="code-10-28959533-2">using System.IO.Packaging;</code></pre>
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Hi,
How to correct
(CODE)

due to this line?

(CODE)

Problem to packaging

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.

.NET Programming

Objective-C is an object-oriented programming language that is a strict superset of C (any valid C code is equally valid Objective-C code), and it inherits its object-oriented capabilities from Smalltalk. All procedural syntax is identical to that of C, and all object-oriented syntax is an implementation of Smalltalk messaging. It is the main programming language used by Apple for OS-X and iOS and their respective APIs/ Objective-C inherits the syntax, primitive types, and flow control statements of C and adds syntax for defining classes and methods.

Objective-C Programming

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Microsoft Development

Programming includes both the specifics of the language you’re using, like Visual Basic, .NET, Java and others, but also the best practices in user experience and interfaces and the management of projects, version control and development. Other programming topics are related to web and cloud development and system and hardware programming.