# Mohammad R. Daoud: Undefined Symbol Errors When Upgrading from a version to another

- URL: https://dynamicaccounting.net/mohammad-r-daoud-undefined-symbol-errors-when-upgrading-from-a-version-to-another/
- Date: 2011-03-01
- Topics: Install, Upgrade & Admin
- Type: original article

Mohammad Daoud digs into Undefined Symbol Errors When Upgrading from a version to another. I have to admit, that’s a pretty scary looking error.

[![image](/img/blogger/330e9de4d54a044d.png "image")](/img/blogger/b1bdd6c3cac652ea.png)