Unable to create microcontroller ARD.ATMEGA.BL0055 - definition file missing or corrupt

[andeug]

Hi,

I am getting a strange error on Windows 11 after installing Flowcode and I don't know how to fix this:

"Unable to create microcontroller ARD.ATMEGA.BL0055 as the definition file ARD.ATMEGA.BL0055.FCD is missing or corrupt."

The error appears immediately after I start FC and trying to select the template "Arduino (BL0055) + Combo (BL0114)" with the two Eblocks2 boards which I own.

Andreas

Screenshot 2025-05-23 220022.png (15.48 KiB) Viewed 2169 times

[andeug]

I get exactly the same error when I am trying to open the file called "Arduino (BL0055) + Combo (BL0114).fcfx", which is located on C:\Program Files (x86)\Flowcode v10\DefaultData\FlowcodeV10\Misc\Templates\E-Blocks 2

Screenshot 2025-05-24 125443.png (155.7 KiB) Viewed 2141 times

Any of those upper files are opening without any error, and it's only the Arduino (BL0055) + Combo (BL0114) that gives me the error.

I uninstalled Flowcode and its drivers a few times and got the same window regarding ARD.ATMEGA.BL0055.fcd file missing or corrupt. I was not able to locate this file on my computer neither, so it's probably missing.

Can someone please share its content and location, so that I can add it to my installation and try to see if it works?

[chipfryer27]

Hi

Problem appears to be with the latest BL0055 update.

I created a simple chart with both the 55' and combo board, saved and could open without issue. Flowcode informed of an update to the 55' and I downloaded. This caused problems similar to yours.

Rolling back the BL0055 to v3 solved the problem.

Screenshot 2025-05-24 063151.jpg (16.01 KiB) Viewed 2132 times

If you roll back until Matrix resolve the issue you should be good.

Regards

[medelec35]

Hello.
Many thanks for reporting this.
We will have an update as soon as we can.

[medelec35]

Hello.
out of curiosity ,so you still have the same issue, or is it resolved now?

[chipfryer27]

Hi Martin

I'm travelling just now so can't check on any HW.

Regards

[andeug]

Hello.
out of curiosity ,so you still have the same issue, or is it resolved now?

If it's me you're asking, then my problem was solved. Meanwhile, I have purchased a DELL Optiplex desktop PC, as I was struggling with some compatibility issues on the Win11 virtual machine, which was hosted on a Parallels Desktop for Mac instance. One of the problems which I still encounter there is that I cannot install the Matrix TSL USB drivers for E-Blocks2.