# Error on Load **URL:** \ **Category:** Technical Support & Bugs\ **Created:** [January 24, 2014, 2:33pm UTC](https://forum.vassalengine.org/t/error-on-load/6582 "2014-01-24T14:33:11Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![wootersl](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/wootersl/32/19_2.png) [@wootersl](https://forum.vassalengine.org/u/wootersl)\ **Post date:** [January 24, 2014, 2:33pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/1 "2014-01-24T14:33:11Z")
I keep getting the following error: - Extension Id for Dungeoneer - 4 - Wrath of the Serpent Goddess.vmdx (103) conflicts with previously loaded extension C:\Users\woote\_001\Desktop\Vassal Modules\Dungeoneer\_en\_ext\Dungeoneer - 3 - Call of the Lich Lord.vmdx Can someone tell me what’s wrong with just this, or do I need to upload all the modules? ---
**Author:** ![wootersl](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/wootersl/32/19_2.png) [@wootersl](https://forum.vassalengine.org/u/wootersl)\ **Post date:** [January 24, 2014, 2:51pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/2 "2014-01-24T14:51:49Z")
Never mind. Figured it out. 🙂 ---
**Author:** ![uckelman](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/uckelman/32/10020_2.png) [@uckelman](https://forum.vassalengine.org/u/uckelman)\ **Post date:** [January 24, 2014, 2:54pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/3 "2014-01-24T14:54:27Z")
Thus spake wootersl: > Never mind. Figured it out. 🙂 What was the cause of the problem? – J. ---
**Author:** ![wootersl](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/wootersl/32/19_2.png) [@wootersl](https://forum.vassalengine.org/u/wootersl)\ **Post date:** [January 24, 2014, 3:35pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/4 "2014-01-24T15:35:12Z")
To save myself some time, I made a copy of my previous module. When I did that, the Extension ID (103) was the same in both modules. I just went into the buildFile of the new Module and changed it’s Extension ID to 104. Then the error went away. Luckily I understand coding. You might want to add that as a field that those without coding experience could change. ---
**Author:** ![Tim\_M](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/tim_m/32/2_2.png) [@Tim\_M](https://forum.vassalengine.org/u/Tim_M)\ **Post date:** [January 24, 2014, 4:31pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/5 "2014-01-24T16:31:22Z")
There is already a field to edit it under the extension properties button. You don’t have to go into the buildfile to edit it -----Original Message----- From: messages [[mailto:messages-bounces@vassalengine.org](mailto:messages-bounces@vassalengine.org)] On Behalf Of wootersl Sent: Friday, January 24, 2014 9:35 AM To: [messages@vassalengine.org](mailto:messages@vassalengine.org) Subject: Re: [messages] [Technical Support & Bugs] Error on Load To save myself some time, I made a copy of my previous module. When I did that, the Extension ID (103) was the same in both modules. I just went into the buildFile of the new Module and changed it’s Extension ID to 104. Then the error went away. Luckily I understand coding. You might want to add that as a field that those without coding experience could change. * * * Read this topic online here: [https://forum.vassalengine.org/t/error-on-load/6582/4](https://forum.vassalengine.org/t/error-on-load/6582/4) ---
**Author:** ![wootersl](https://forum.vassalengine.org/user_avatar/forum.vassalengine.org/wootersl/32/19_2.png) [@wootersl](https://forum.vassalengine.org/u/wootersl)\ **Post date:** [January 24, 2014, 6:02pm UTC](https://forum.vassalengine.org/t/error-on-load/6582/6 "2014-01-24T18:02:39Z")
Oh. Didn’t even notice that little button. lol Thanks!