System.IO.Compression dll missing error

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I am using .Net framework 4.0, System.IO.Compression is only supported in 4.5. So I refered it from the 4.5 folder and it worked in my 4.0 application. Now the issue is that after publishing, I am not getting the dll(System.IO.Compression)in the Bin folder, So i am getting dll missing error after hosting. Hosted iis supports 4.0 only.

Posted 23-Dec-14 17:33pm

id-athul

Updated 11-Oct-18 19:41pm

v4

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syed shanu 23-Dec-14 23:45pm

Did you add System.IO.Compression dll to your bin folder where you have hosted.

DamithSL 23-Dec-14 23:48pm

System.IO.Compression[^] is avalable on .net 4.0
can you update the question with your code?

id-athul 24-Dec-14 0:07am

Yes I have done it

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-12-23T17:55:00

Solution 1

You should not do such things. The namespace "System.IO.Compression" is used by several DLLs all put in the GAC. You should always reference those DLLs by strong names, not by their executable modules. Please see:
http://en.wikipedia.org/wiki/Global_Assembly_Cache[^],
http://msdn.microsoft.com/en-us/library/yf1d93sz%28v=vs.110%29.aspx[^],
http://en.wikipedia.org/wiki/Strong_name[^],
http://msdn.microsoft.com/en-us/library/wd40t7ad%28v=vs.110%29.aspx[^].

—SA

Posted 23-Dec-14 17:55pm

Sergey Alexandrovich Kryukov

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id-athul 24-Dec-14 5:12am

Please tell me how can I create a strong name for an exixting dll. What I did is created a new project hen referred System.IO.Compression. Then added a key and rebuild again. Now can I used this dll to refer. Or please tell me where we can get the strong name of System.IO.Compression.

Sergey Alexandrovich Kryukov 24-Dec-14 10:27am

This is done by signing of the assembly, see the properties. But this is not the point.
You need to reference .NET FCL libraries by strong name. In the window "Add Reference", don't use "Browse", use .NET tab, where all GAC names will be shown. If you want to reference your own assembly, the by far beneficial way is to put all your projects with all dependencies in the same solution and reference by the tab "Projects". This way, if you change something in one of the projects, references will be preserved.
—SA

id-athul 24-Dec-14 6:02am

My public token key is
b77a5c561934e089.