# Error installing GP 2015

**URL:** <https://www.dynamicsuser.net/t/error-installing-gp-2015/74595>\
**Category:** Dynamics GP\
**Created:** [October 7, 2021, 12:57pm UTC](https://www.dynamicsuser.net/t/error-installing-gp-2015/74595 "2021-10-07T12:57:52Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Frank\_Puma](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Frank\_Puma](https://www.dynamicsuser.net/u/Frank_Puma)\
**Post date:** [October 7, 2021, 12:57pm UTC](https://www.dynamicsuser.net/t/error-installing-gp-2015/74595/1 "2021-10-07T12:57:52Z")

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I am tring to install GP 2015 on a new Win 2k16 Citrix server. I am getting the following error and cant get this installed. Anyone know a work around?

System.InvalidOperationException: Operation is not valid due to the current state of the objecdt.  
at  
Microsoft.Deynamics.GP.Deployment.UX.EntryPoint.GetDialogSequene  
TypeFromImageType(DeploymentImage deploymentImage)  
at Microsoft.Dynamics.GP.Deployment.UX.EntryPoint.Run()

![image](https://us1.discourse-cdn.com/flex023/uploads/dugusers/original/2X/e/e61c87401e5cce2332c907ccd5f475ce2ea4b94b.png)

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**Author:** ![GP\_Geek](https://sea1.discourse-cdn.com/flex023/user_avatar/www.dynamicsuser.net/gp_geek/32/7586_2.png) [@GP\_Geek](https://www.dynamicsuser.net/u/GP_Geek)\
**Post date:** [October 25, 2021, 7:14pm UTC](https://www.dynamicsuser.net/t/error-installing-gp-2015/74595/2 "2021-10-25T19:14:11Z")

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Hi Frank,  
I’m going to try to help you as best as I can from my long experience in GP installation…  
Did you fill all the prerequisites for GP (Dexterity run-time libs & all)? From the error message you captured, it looks like you’re trying to install GP from a Deployment package? or is that the regular GP Setup?  
When does this pop-up ? right after you run the Setup.EXE from the GP image or after the main installation panel shows up and allows for various options to select from ?  
Did you check the Windows Event logs to see if it returns more details ?

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**Author:** ![Frank\_Puma](https://avatars.discourse-cdn.com/v4/letter/f/7ea924/32.png) [@Frank\_Puma](https://www.dynamicsuser.net/u/Frank_Puma)\
**Post date:** [November 29, 2021, 8:35pm UTC](https://www.dynamicsuser.net/t/error-installing-gp-2015/74595/3 "2021-11-29T20:35:00Z")

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Yes i ran this by using the setup installer. This error come up immediatley. I dont really see anything relevant in the Event Viewer.

I assume all the pre reqs would install during this setup.

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**Author:** ![Sarah\_Brewster](https://sea1.discourse-cdn.com/flex023/user_avatar/www.dynamicsuser.net/sarah_brewster/32/8174_2.png) [@Sarah\_Brewster](https://www.dynamicsuser.net/u/Sarah_Brewster)\
**Post date:** [December 8, 2021, 5:54pm UTC](https://www.dynamicsuser.net/t/error-installing-gp-2015/74595/4 "2021-12-08T17:54:03Z")

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Hi Frank,  
You may have already solved the problem, but in case not, I found [this old post](https://community.dynamics.com/gp/f/microsoft-dynamics-gp-forum/66782/system-invalidoperationexception-operation-is-not-valid-due-to-the-current-state-of-the-object-at-microsoft-dynamics-gp-deployment-uxentrypoint-getdialogsequencetypefromimagetype) on the Microsoft community forum. The response suggests that your problem may be a corrupted installation package. If you haven’t, try redownloading GP 2015 from [here](https://docs.microsoft.com/en-us/dynamics/s-e/gp/mdgp2015_release_download_361).

Hope this helps!