# Error message "Error expanding Content : Missing % after :!"
**URL:** https://www.finalbuilder.com/forums/t/error-message-error-expanding-content-missing-after/3479
**Category:** Bugs
**Created:** [April 9, 2013, 9:44am UTC](https://www.finalbuilder.com/forums/t/error-message-error-expanding-content-missing-after/3479 "2013-04-09T09:44:09Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ehlers](https://www.finalbuilder.com/forums/u/ehlers)
#### Post date: [April 9, 2013, 9:44am UTC](https://www.finalbuilder.com/forums/t/error-message-error-expanding-content-missing-after/3479/1 "2013-04-09T09:44:09Z")
Hi,
unfortunately I get an error: “expanding Content : Missing % after :!” when using variables with a leading hash-sign in it.
Following situation:
1) Create Variable: #MyVar#
2) Set Variable to “Test”
3) Use variable in “Save Variable to ini action” or inside a “Write to text file” - action using %#MyVar#% to expand the variable.
Unfortunately this does not work, but I need to use those vars with leading and trailing # (for a 3rd Party program that use them).
I am currently working with FB Pro 6.3.0.2253, but also tried latest FB 7 (Trial) with no success…
Is there any fix/workaround for this?
Thanks much & Regards,
Martin
PS: I added a very simple/simplified demo project reflecting the above case…
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### Author:  [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [April 9, 2013, 10:29am UTC](https://www.finalbuilder.com/forums/t/error-message-error-expanding-content-missing-after/3479/2 "2013-04-09T10:29:25Z")
#name# is an alternate (deprecated) syntax for Action List Parameters, so you need to escape them : ##name##