# Error with using some FP(FlexPendant) toolbox item **URL:** \ **Category:** Developer Tools\ **Created:** [March 3, 2009, 10:35am UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558 "2009-03-03T10:35:24Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Dezino](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@Dezino](https://tech-community.robotics.abb.com/u/Dezino)\ **Post date:** [March 3, 2009, 10:35am UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/1 "2009-03-03T10:35:24Z")
Hi’ I have tried using the button icon from the FP toolbox, this results in an eeror at startup of the virtual FP. This gives an error message that reads: “Exception has been thrown by the target of an invocation” It does this with many other items such as the checkbox, the graph, etc. May you kindly assist on how I can overcome this! ---
**Author:** ![RussD](https://avatars.discourse-cdn.com/v4/letter/r/dec6dc/32.png) [@RussD](https://tech-community.robotics.abb.com/u/RussD)\ **Post date:** [March 3, 2009, 2:27pm UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/2 "2009-03-03T14:27:34Z")
Are you using the same version of RW, RS, and RAB for your system? ---
**Author:** ![Dezino](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@Dezino](https://tech-community.robotics.abb.com/u/Dezino)\ **Post date:** [March 3, 2009, 3:06pm UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/3 "2009-03-03T15:06:25Z")
Yes I am using the same version RAB5.11.01 and RS5.11, on Visual Studio2008 IDE. ---
**Author:** ![RussD](https://avatars.discourse-cdn.com/v4/letter/r/dec6dc/32.png) [@RussD](https://tech-community.robotics.abb.com/u/RussD)\ **Post date:** [March 3, 2009, 3:34pm UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/4 "2009-03-03T15:34:40Z")
What about RobotWare version? Do you have the FlexPendant interface option in your system? ---
**Author:** ![Dezino](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@Dezino](https://tech-community.robotics.abb.com/u/Dezino)\ **Post date:** [March 4, 2009, 7:08am UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/5 "2009-03-04T07:08:04Z")
Yep, I have the FlexPendant option. ---
**Author:** ![carlosmtz2000](https://avatars.discourse-cdn.com/v4/letter/c/e79b87/32.png) [@carlosmtz2000](https://tech-community.robotics.abb.com/u/carlosmtz2000)\ **Post date:** [March 4, 2009, 3:16pm UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/6 "2009-03-04T15:16:03Z")
Which Robotware version does your system have? ---
**Author:** ![Dezino](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@Dezino](https://tech-community.robotics.abb.com/u/Dezino)\ **Post date:** [March 5, 2009, 8:01am UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/7 "2009-03-05T08:01:56Z")
Hi’ I am using the following versions: RW ver: RW5.10\_0147 RAB ver: 5.11.01 RS ver: 5.11 ---
**Author:** ![RussD](https://avatars.discourse-cdn.com/v4/letter/r/dec6dc/32.png) [@RussD](https://tech-community.robotics.abb.com/u/RussD)\ **Post date:** [March 5, 2009, 2:43pm UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/8 "2009-03-05T14:43:35Z")
You have to use the same major RW version (5.11.xx) as RAB (5.11.xx) version, that is why you are seeing this problem. ---
**Author:** ![Dezino](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@Dezino](https://tech-community.robotics.abb.com/u/Dezino)\ **Post date:** [March 6, 2009, 7:06am UTC](https://tech-community.robotics.abb.com/t/error-with-using-some-fp-flexpendant-toolbox-item/2558/9 "2009-03-06T07:06:37Z")
Thanks for your assistance, It is now working!