Watches: impossible to add (MPLAB 5.25/XC8 2.10/PIC18F46K22)

Hi,
It seems impossible to add watches (or variables) to see them.
It's the same in Windows 10 and in Ubuntu.
The variables don't appear in Global Symbols, so it's impossible to add them.
 
Configuration: MPLAB 5.25 / XC2.10 / PIC18F46K22 / Simulator.
 
Thanks for reply

I'm guessing the OP means XC8 2.10
If they had revealed which PIC device they are using, we'd have a better chance of guessing which compiler it is.

Thanks domble, ric, pcbbc.
I modified the title to correct for xc8 and define the PIC.
 
And I confirm that I tried to add watches and variables with all possibilities:
- selection of variable in the editor then right-click "New Watch";
- in watches or variables window trying to add directly typing the name, or clicking to open the "New watch" window and typing the name -- clicking SFR or Global Symbols -- and the last method right-clicking in watches to select "New Watch".
 
But what is new:
- when I close MPLABX and reopen ... all the watches I defined are there and disappear when launching debugger;
- I finally am able to add watches if and only if I declare the variables at the beginning of the main function and if I give them a default value. Examples (... is some lines of code):
------ in this example 1 I can get watch for a ---
void main(void) {
unsigned char a=0;
...
}
 
------ in this example 2, I can't get watches ---
void main(void) {
unsigned char a;
...
a=10;
...
}
 
------ in this example 3, I can't get watches ---
void main(void) {
...
unsigned char a=10;
...
}
 
Thanks
 
Goupil