# Communication between AIController class and BTTask\_BlueprintBase class

**URL:** <https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236>\
**Category:** AI\
**Tags:** Behavior-Tree, aicontroller, unreal-engine, Blueprint, question\
**Created:** [June 18, 2014, 7:23pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236 "2014-06-18T19:23:40Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![AntonioModer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AntonioModer](https://forums.unrealengine.com/u/AntonioModer)\
**Post date:** [June 18, 2014, 7:23pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/1 "2014-06-18T19:23:40Z")

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See comments in my UE Project (see “Read me before you open the project.txt”):

> **[MyBP\_BT.zip](https://disk.yandex.com/d/zvP5ns3QTxVsX)**
>
> View and download from Yandex.Disk

[orwww.dropbox.com/s/juk00ryol5ne50a/MyBP\_BT](http://orwww.dropbox.com/s/juk00ryol5ne50a/MyBP_BT).

My DxDiag: [Dropbox - DxDiag.txt - Simplify your life](https://www.dropbox.com/s/ko2sztiazkzmf4q/DxDiag.txt)

I don’t have crashes.

Explanation of my bug:  
**see questions in comments of pictures - this is my questions for you**

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**Author:** ![anonymous\_user\_b9532c9a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_b9532c9a](https://forums.unrealengine.com/u/anonymous_user_b9532c9a)\
**Post date:** [June 18, 2014, 9:12pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/2 "2014-06-18T21:12:56Z")

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Hi ,

Unfortunately that site is not on our list of approved sites. As such the company firewalls will not allow us to access it. Could you please try posting this to an approved FTP server, such as dropbox, and sharing the link here? Further could you send us your dxdiag and any crash logs if applicable? Thank you!

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**Author:** ![AntonioModer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AntonioModer](https://forums.unrealengine.com/u/AntonioModer)\
**Post date:** [June 18, 2014, 9:53pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/3 "2014-06-18T21:53:12Z")

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I update question.

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**Author:** ![anonymous\_user\_b9532c9a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_b9532c9a](https://forums.unrealengine.com/u/anonymous_user_b9532c9a)\
**Post date:** [June 18, 2014, 10:33pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/4 "2014-06-18T22:33:19Z")

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Hi Antonio,

Unfortunately I am still having trouble understanding what is happening. What is the bug you are running into? If you could let me know I would be able to keep an eye out for what may be going on. Thank you!

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**Author:** ![AntonioModer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AntonioModer](https://forums.unrealengine.com/u/AntonioModer)\
**Post date:** [June 19, 2014, 9:28am UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/5 "2014-06-19T09:28:11Z")

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I update question.

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**Author:** ![anonymous\_user\_b9532c9a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_b9532c9a](https://forums.unrealengine.com/u/anonymous_user_b9532c9a)\
**Post date:** [June 19, 2014, 1:34pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/6 "2014-06-19T13:34:50Z")

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Hi ,

We are happy to report that this is not a bug. There are a few things that need to be altered within your blueprints to provide the functionality you are looking for. To get more information on the Behavior Tree and AI Blueprint functionality, please have a look at a few of these links, they should be able to assist you further:

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from...

> **[Blueprint Cast to AI node Just will not work! Help](https://forums.unrealengine.com/showthread.php?9268-Blueprint-Cast-to-AI-node-Just-will-not-work%21-Help&highlight=AI%2BBlueprint)**
>
> Hey Guys, ive started looking through the Shootergame blueprints for examples. In the BOT Blueprint there is a cast to shooterAIcontroller node but i can’t find out why i can’t create one, Ive built my own example game using the AI base code from...

> **[How to set Blackboard entries in blueprint (not part of a behavior tree)](https://forums.unrealengine.com/showthread.php?10380-How-to-set-Blackboard-entries-in-blueprint-%28not-part-of-a-behavior-tree%29&highlight=AI%2BBlueprint)**
>
> I want to set an enum entry in my AIController blueprint when player presses a key, but it doesn’t work. “Get Blackboard Value as Name” always returns a null value. I create an enum called ENUM\_TaskTypes, and have an enum entry in Blackboard. Does...

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**Author:** ![AntonioModer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AntonioModer](https://forums.unrealengine.com/u/AntonioModer)\
**Post date:** [June 19, 2014, 1:48pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/7 "2014-06-19T13:48:09Z")

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I’m glad to hear that this is not a bug!  
Thank you so much, ! 🙂

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**Author:** ![AntonioModer](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@AntonioModer](https://forums.unrealengine.com/u/AntonioModer)\
**Post date:** [June 19, 2014, 2:19pm UTC](https://forums.unrealengine.com/t/communication-between-aicontroller-class-and-bttask-blueprintbase-class/286236/8 "2014-06-19T14:19:58Z")

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I understood! This is work! The correct Blueprint:
