I was working on a project that would check if the device is connected to the internet or not, while working on the same project, I by mistake clicked on paste all blocks from backpack and soon deleted all those blocks while app inventor still showed 2 signs:
I closed the window and opened it again but this time all of my blocks were gone and i could only see some extension blocks from my backpack while the extension wasn't loaded in that project. The blocks did not have any red border lines, when they should have. I deleted all the blocks again, wrote the same code but the next time i open the project, blocks are gone- those same 3 extension blocks were there.
Everytime I drag a block into this block section, it shows:
@Shobha_Singhal after doing what @Anke suggested, these are the only blocks left in your project...
you might want to restart from your latest backup...
The project doesn't contain the extension file though.. As I was working on a camera app I had many test projects so some blocks from your extension were too in the backpack..
Guys, I asked Shobha to put this file up, it was my intention to draw Evan's attention to it. I think her description in the first post explains a lot of things that I tested for myself but somehow a debate has veered to the left somewhat.
Taifun's extension was never loaded into the Project, there was no intention to use it.
When Blocks from the extension were inadvertently loaded from the Backpack, they did not show any warning (no red line borders).
The extension Blocks were deleted, but either on save or on reload, the Project became corrupted and contained extension Blocks but 'lost' all the others.
It's only a test App and Shobha wrote a new one from scratch..
signs:
