RTOS/TM4C123GH6PM: help is needed in .cfg file

Sarea,
check if you have whitespaces around the string 'ledToggle'. Any whitespace will trigger such error.

thanks Sasha
i have checked that .. there is no spaces around the 'ledToggle' string. till now i don't know how to solve the problem.

Regards,
Sarea

Can you try adding a letter by letter and see which one causes the problem? I know that you probably don't have a function 'l' or 'le', but that will cause the problem later, not when you only save your config file or click on 'validate'. The button 'validate' is the one in the upper right corner of your XGconf window. Whenever you change the name of the function click on that button and see what happens.

Also, at the bottom of your XGconf window is the tab cfgScript. You can check the bottom of the script to see how is your entry added to the array of idle functions. You should see something like:
Idle.idleFxns[0] = "&ledToggle";

Sasha
sorry, i don't see any 'validate' button on the upper right corner. but there is a refresh button.
also when i trying to add the name letter by letter i still have the same problem.
by the way, when i type any name as a function name i noticed that in the script file there is assignment operation for array element corresponding to the name i entered without the '&' symbol :

Idle.idleFxns[0] = "what ever i entered ";

Regards,
Sarea

Can you try editing your script manually? Just write in the cfgScript tab:
Idle.idleFxns[0] = "&ledToggle";
then save, close XGconf and try building your project. Once you have a successful build, you can open XGconf again and check what's in that 'function 0' text box.

Which version of XDCtools do you have installed?