# FBS7: Could not convert variant of type (Null) into type (OleStr)

**URL:** https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545
**Category:** Discussion
**Created:** [August 5, 2010, 10:17am UTC](https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545 "2010-08-05T10:17:52Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![dingerslev](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/d/4da419/32.png) [@dingerslev](https://www.finalbuilder.com/forums/u/dingerslev)
#### Post date: [August 5, 2010, 10:17am UTC](https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545/1 "2010-08-05T10:17:52Z")

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Hi,

I have just converted a very large project to version 7. And it is almost a success. For the "Text Find / Replace" action I get this error: "Could not convert variant of type (Null) into type (OleStr)". What does this mean?

I tried to make a small test project to reproduce the error, but was unable. I only get this error on my large project. But I will give it another try to reproduce this on a test-project.

The new GUI is very nice. Thank you

// Morten

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [August 5, 2010, 11:45am UTC](https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545/2 "2010-08-05T11:45:16Z")

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The error message suggests a scripting problem, do you have any script events on the action. Also, do you have any missing variables in FB7 (for example User variables that are defined in FB6 but not FB7)?

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### Author: ![paulsamways](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/p/e8c25b/32.png) [@paulsamways](https://www.finalbuilder.com/forums/u/paulsamways)
#### Post date: [August 6, 2010, 5:21am UTC](https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545/3 "2010-08-06T05:21:09Z")

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Hi Morten,   
  
 Please try the new build at [https://www.finalbuilder.com/Default.aspx?tabid=456&aft=10055](https://www.finalbuilder.com/Default.aspx?tabid=456&aft=10055).   
  
 Regards,   
 Paul.

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### Author: ![dingerslev](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/d/4da419/32.png) [@dingerslev](https://www.finalbuilder.com/forums/u/dingerslev)
#### Post date: [August 6, 2010, 11:48am UTC](https://www.finalbuilder.com/forums/t/fbs7-could-not-convert-variant-of-type-null-into-type-olestr/1545/4 "2010-08-06T11:48:14Z")

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I can confirm that this issue is fixed in 7.0.0.532. Thank you for your quick fix.

// morten