# FB Action Studio 8 fails to open/upgrade 7 package

**URL:** https://www.finalbuilder.com/forums/t/fb-action-studio-8-fails-to-open-upgrade-7-package/3573
**Category:** Bugs
**Created:** [August 21, 2015, 5:58am UTC](https://www.finalbuilder.com/forums/t/fb-action-studio-8-fails-to-open-upgrade-7-package/3573 "2015-08-21T05:58:40Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![sln\_widex](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/s/9f8e36/32.png) [@sln\_widex](https://www.finalbuilder.com/forums/u/sln_widex)
#### Post date: [August 21, 2015, 5:58am UTC](https://www.finalbuilder.com/forums/t/fb-action-studio-8-fails-to-open-upgrade-7-package/3573/1 "2015-08-21T05:58:40Z")

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Our scripts fails when upgrading from FB 7 to 8 due to upgrade problem with our Custom Action Package  
When we open our Custom Action Package from FB Action Studio 7 with FB&nbsp;Action Studio 8 we got the message:  
&nbsp;Invalid Actions packages:  
xxx Serialize A cannot be empty  
…  
It turns out that a new&nbsp;property “Serialization ID” &nbsp;is empty for all actions in the package?  
  
If I copy the&nbsp;properties “Action Identifier” from FB AS 7 into the corresponding “Serialization ID” in FB AS 8 it seems to work !?  
**There should be an automatic upgrade path from FB AS 7 to 8**  
  
/Svend  
  
Platform: Win 7 SP1, latest updates  
FB 7.0 Build 3202  
FB 8.0 Build 941

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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 24, 2015, 3:04am UTC](https://www.finalbuilder.com/forums/t/fb-action-studio-8-fails-to-open-upgrade-7-package/3573/2 "2015-08-24T03:04:38Z")

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The Serialization ID field is new in FinalBuilder 8. If you open an .fbp8 file in a text editor you will see something like :   
  
 action.files.copy   
  
 We use the convention for actions of : action.noun.verb   
  
 If you just use the Action Identifier it may work but it’s not something we have tested and your project files will look terrible when diffing them (no way to know what the guid means).   
  
  
 There is unfortunately no way to automatically generate these values, you need to open your FB7 packages in FB8’s action studio, populate the Serialization ID’s and save them as FB8 packages.