# Model Update Wizard TDM 5.5

**URL:** <https://forums.toadworld.com/t/model-update-wizard-tdm-5-5/34872>\
**Category:** Toad Data Modeler\
**Created:** [January 19, 2016, 3:09pm UTC](https://forums.toadworld.com/t/model-update-wizard-tdm-5-5/34872 "2016-01-19T15:09:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zac.heismann](https://avatars.discourse-cdn.com/v4/letter/z/76d3ee/32.png) [@zac.heismann](https://forums.toadworld.com/u/zac.heismann)\
**Post date:** [January 19, 2016, 3:09pm UTC](https://forums.toadworld.com/t/model-update-wizard-tdm-5-5/34872/1 "2016-01-19T15:09:12Z")

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I have TDM 5.5.3.20 on Windows 7 64-bit and an 11.2 Oracle Client installed. I’m trying to use the Model Update Wizard and connecting to a Oracle 12C database.

I can select the Data Source, but when the wizard transitions to the “What to Reverse” step an error report is produced. Any troubleshooting ideas?

![TDM_Error.png](https://global.discourse-cdn.com/quest/original/2X/e/e39a1819b6e6a5f5a70ec52a739eaed58f411066.png)

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**Author:** ![Lukas.Knapek](https://sea1.discourse-cdn.com/quest/user_avatar/forums.toadworld.com/lukas.knapek/32/269_2.png) [@Lukas.Knapek](https://forums.toadworld.com/u/Lukas.Knapek)\
**Post date:** [January 19, 2016, 11:58pm UTC](https://forums.toadworld.com/t/model-update-wizard-tdm-5-5/34872/2 "2016-01-19T23:58:12Z")

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Hi Zac,

Could you check for an error log ( **TDM.elf** file) in this location?  
\_\_C:\Users\*username\*\AppData\Roaming\Dell\Toad Data Modeler\_\_Please attach it here or send it to my email ([lukas.knapek@quest.com](mailto:lukas.knapek@quest.com)).

And a couple of questions:

- Can you describe step by step how do you update your model?
- Did you have similar problem when you first reverse engineered your model from the database?
- Have you tried other Data Providers (TCP/IP or ADO connection)? Did you run into the same error?  
Regards,

Lukas