# System Builder Error!!!!!! Cannot get System Builder to Work.

**URL:** <https://tech-community.robotics.abb.com/t/system-builder-error-cannot-get-system-builder-to-work/6630>\
**Category:** Robot Controller\
**Tags:** systembuilder, missing-file, mfc120u-dll, robotstudio, system-builder\
**Created:** [May 15, 2015, 8:26pm UTC](https://tech-community.robotics.abb.com/t/system-builder-error-cannot-get-system-builder-to-work/6630 "2015-05-15T20:26:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![1\_milad\_3](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/1_milad_3/32/2403_2.png) [@1\_milad\_3](https://tech-community.robotics.abb.com/u/1_milad_3)\
**Post date:** [May 15, 2015, 8:26pm UTC](https://tech-community.robotics.abb.com/t/system-builder-error-cannot-get-system-builder-to-work/6630/1 "2015-05-15T20:26:03Z")

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I don’t know what the problem is, but my RobotStudio will not allow me to use System Builder. Every time I try and use it I get an error. The first time this happened RobotStudio told me I was missing a .dll file. I got the file from a fellow programmer and put it where it was found on his computer. After I put the .dll file in i still get an error and i cannot use system builder. I have uninstalled and reinstalled RS 3X and still get an error. CAN ANYONE PLEASE HELP!!! I am attaching snippets of what is going on.

 ![system-builder_1.PNG](https://europe1.discourse-cdn.com/flex005/uploads/robotics1/original/2X/a/a79abbc46161987315ca21637042d6e91034a543.png)  
 ![system-builder_2.PNG.jpg](https://europe1.discourse-cdn.com/flex005/uploads/robotics1/original/1X/7db0952bce006716df4341ef281556a7543815b0.jpeg)  
 ![system-builder_3.PNG](https://europe1.discourse-cdn.com/flex005/uploads/robotics1/original/2X/3/385d017c461eb82f071e39d41c385129911586ae.png)

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<div class="post-metadata">

**Author:** ![Knud\_E\_Lindberg](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/knud_e_lindberg/32/4450_2.png) [@Knud\_E\_Lindberg](https://tech-community.robotics.abb.com/u/Knud_E_Lindberg)\
**Post date:** [May 27, 2015, 12:42pm UTC](https://tech-community.robotics.abb.com/t/system-builder-error-cannot-get-system-builder-to-work/6630/2 "2015-05-27T12:42:34Z")

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RS 3.x is a old version for S4 robots.

All the dll you need is included in the installations packet.

Is the robotware installed?