Android Question Error Loading File - unknown Type 12

[Jimmy-1974]

Can anyone advise me on what the message "Error Loading File - unknown Type 12" is referring to when opening an activity in Designer?

My project works fine on my main computer but for some reason I now get this error if i run it on my laptop (it used to work fine).

 

[Erel]

You need to update B4A on your laptop to the latest version.

 

[bycharly]

Hi, I'm having the same problem.
On December I was working on a project, and now I need to continue working on it, but when I try to open an activity on the designer, the following message appear:
"Error Loading File - unknown Type 12"
My period of free upgrades has expired. What should I do?

 

[Jimmy-1974]

Hi, I'm having the same problem.
On December I was working on a project, and now I need to continue working on it, but when I try to open an activity on the designer, the following message appear:
"Error Loading File - unknown Type 12"
My period of free upgrades has expired. What should I do?

In the file security setting properties there is a display 'This file came from another computer and might be blocked to help protect this computer' along with an 'Unblock' button. By simply pressing the button the program installs and runs no problem at all.

 

[bycharly]

Thanks Jimmy!
That must be what is happening to me.
Where can I find this option to unblock it?
Thanks!

 

[Jimmy-1974]

Sorry for the delayed reply. From memory, it was simply a case of 'right-clicking' your B4A icon and selecting properties then security. This is where I was prompted with the Unlock button.