LiveCode Forums.

Hi ,

We run LiveCode 5.0.2 but when trying to load a stack created in version 5.5 we get the error message "there was a problem opening that stack: file is not a stack".

When the same stack is opened in version 5.5 all is well.

I'm therefore guessing that it's a version issue but I could of course be wrong.

This is a pretty major issue to us as we are trying to share educational resources between different authorities. Updating versions may be a solution but this requires council IT having the time to roll the update across the region which can take months to get the go ahead.

Can anyone help please?


Jack

From the v5.5 release notes:

Important: As of 5.5-dp-3, the default stack file format has been updated to 5.5. The previous default version (2.7) has been set as a legacy option in the “Save As” dialog.

I'm therefore guessing that it's a version issue.

Yes. The stack file format changed with LiveCode 5.5, so you can't open stacks modified with 5.5 using any previous LC version.

To maintain compatibility, save the stack in legacy format (2.7). Use the Save As... menu in LC 5.5 instead.
Or use the code

set the stackfileversion to 2.7
save stack

You help is very much appreciated.

Thanks,

Jack