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Article ID: 214 - Date Created Saturday, March 25, 2017 - This Article Has been Viewed 310 times.
Article was last updated on: Saturday, March 25, 2017 - Written By:

Type 'TagLib.File' is not defined

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Using the taglib-sharp.dll on a website without a reference to the DLL library, you will receive Type 'TagLib.File' is not defined

Details
When using Visual Studio, you add a reference to the taglib-sharp.dll. This will add the files to a /bin folder within your website1 directory. You can then make references to the Library using simple code like this.

<%

Dim mp3 As File = File.Create("G:\WebSite1\01Fantasy.mp3")
Dim strTitle As String = mp3.Tag.Title
Label1.text = strTitle

%>


Recreate Issue
To Reproduce this issue.

Using the code above, that works within Visual Studio, does not work in a website without making a reference to the DLL file within your project.


Resolve Issue
To Resolve this issue.

This is taken from the blogs over at Microsoft. Thanks to their Blog Member. tolong« for this information.

 

Using the Visual Basic Developer Command Prompt.
Click on your [Start] Menu.
Choose [Programs]
Scroll down to the [Visual Studio 2015] (your Version number here)
Choose [Developer Command Prompt for VS2015] (your Version number here)

When the window opens, do the following commands.
C:\Windows\system32>
type in
cd G:\ (Replacing the G with the drive you have your DLL files at)
G:\>
Type in cd Packages (To in the rest of the location here, and hit Enter)
G:\Packages>
NEXT
G:\Packages>gacutil -i taglib-sharp.dll
If successful, you will receive this message.
[Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.30319.0
Copyright (c) Microsoft Corporation. All rights reserved.

Assembly successfully added to the cache]
NEXT
G:\Packages>gacutil -l taglib-sharp
If successful, you will receive this message.
[Microsoft (R) .NET Global Assembly Cache Utility. Version 4.0.30319.0
Copyright (c) Microsoft Corporation. All rights reserved.

The Global Assembly Cache contains the following assemblies:
taglib-sharp, Version=2.1.0.0, Culture=neutral, PublicKeyToken=db62eba44689b5b0, processorArchitecture=MSIL

Number of items = 1]

The above string you will need.
>> taglib-sharp, Version=2.1.0.0, Culture=neutral, PublicKeyToken=db62eba44689b5b0

Now, with the above done, you will need to add that information into your web.config file.
Which will look like this.

<%

<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true" strict="false" explicit="true" targetFramework="4.5">
<assemblies>
<add assembly="taglib-sharp, Version=2.1.0.0, Culture=neutral, PublicKeyToken=db62eba44689b5b0"/>
</assemblies>
</compilation>
</system.web>
</configuration>

%>


You will then be able to run your taglib-sharp website on your server.



how-to-get-your-publickeytoken«