I will add that !(Variable) works but not NOT(Variable)

It does not recognise a Boolean NOT DG. When I fix it, with a space, it reverts to NOTDG, and as such, thinks it is a variable. It sees the same error when I step thru it with F8. I may be asleep at the wheel.
Thanks in advance.

I think I see now. I can not create a float variable. Ir should be an Int variable

I created a float variable. And requested an "Input", on an UNO, for AN1. Tried it on FC V9 and V10.
When I assign the input to the Float variable, the error message is
Can not convert to type " .
Any suggestions? I have included the FV V9 Program.

I want to turn on/blink 16 LED's, so I am using a bidirectional Multiplexer. The choice of which of 16 outputs is controlled by a 4 bit word sent to pins on the MUX. And an Enable which goes low, to send 5 V to the LED chosen. The results are not correct. I have hooked up a 4 X switch, to the MUX, a...

A simple program "Hello World" that runs fine on a Mega or UNO.
But when I use the FC V10 Debug / Run, the screen as shown in an attachment comes up.
Am I pushing the incorrect button?

So I did D/L FC 10 to a new Laptop. Then I checked library files updated, and there was an update for the gLCD. Then the problem went away. That is, I was able yo compile to HEX. Thanks Matrix!! But now I need to enter my License number.

Good point. Thanks

The gLCD has worked for me many times in the past. Questions: 1. If you can identify the font error, is there a way to correct and save it. 2. Since I have used it in the past, I wonder if the library file was mistakenly modified. Skall I report it to Alfie? 3. I suppose I could look for another gLC...

The library files are up to date. Thanks.

The only thing I know to do is to d/l FC 10 onto a new computer.