asp.net Compilation Error (mysql.data)

Question

i have an error when trying to start default.aspx.

Compiler Error Message: CS0433: The type 'MySql.Data.MySqlClient.MySqlConnection' exists in both 
'c:\Windows\assembly\GAC_MSIL\MySql.Data\6.3.6.0__c5687fc88969c44d\MySql.Data.dll' and 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\elwazefa\fd12d8de\3446c68c\assembly`\dl3\dc121b8b\00d6e0c3_62aacb01\MySql.Data.CF.DLL'`

i am using asp.net 3.5 what is the problem, thanks

Try deleting the temporary file they mention.

Abe Miessler
– Abe Miessler

2011-04-25 20:08:33 +00:00
Commented Apr 25, 2011 at 20:08 — Abe Miessler
– Abe Miessler, Commented Apr 25, 2011 at 20:08

Katie Kilian · Accepted Answer · 2011-04-25 20:36:33Z

4

It looks to me like you have references to both the Compact Framework and the standard framework MySQL libraries in your project. You need to remove the references to the ones that have .CF in their filename.

answered Apr 25, 2011 at 20:36

Katie Kilian

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2 Comments

Moeez Over a year ago

I don't have CF. what should i do then?

Katie Kilian Over a year ago

You have the exact same error message, but don't have CF? You do have CF if you're getting that error message. If you are getting a different error, open a new question.

Grant Thomas · Accepted Answer · 2011-04-25 20:11:59Z

0

Check your web.config file assemblies section for multiple references:

<compilation>
  <assemblies>
    ...             
  </assemblies>
</compilation>

If there is more than one then remove it (the one not in the GAC, I would say off-hand.)

Also, as @Abe suggests, delete the temporary files under the following path:

c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\

answered Apr 25, 2011 at 20:11

Grant Thomas

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1 Comment

Wahtever Over a year ago

i didnt fine ant duplicates in the assemblies and i tried to remove the temp files which made work on local host but it still doesnt work on the actual host

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