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Asked: 2026-05-23T11:58:09+00:00

I’m getting an error like ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not

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I’m getting an error like ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified when publish the website. If I’m running the website from VisualStudio it’s working fine, no issue. I had put the connection string in web.config file. The connection string is like
<appSettings>
<add key="ConnectionStr" value="DRIVER={MySQL ODBC 5.1 Driver};SERVER=10.7.26.75;PORT=3306;DATABASE=XXXXXX;UID=XXXXX;PASSWORD=root123"/>
</appSettings>

Please guide me to resolve this issue.

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1 Answer

  1. Editorial Team

    Are you publishing to a different computer/server? If so, it could be possible that the MySql ODBC Driver is not installed on the machine you are publishing to.

    MySQL ODBC Driver:
    http://dev.mysql.com/downloads/connector/odbc/

    EDIT
    Another thing to check. See this article, and search for the text “Master genius John”. He describes a similar error due to there being 32bit and 64bit versions of the driver. If you are running a 64bit OS, it’s possible you’ve configured the DSN for one version and not the other.

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