The problem is I can't open file.

Console_mp.log
PHP Code:
Error
******* 
script compile error *******
Error: return value of developer command can not be accessed if not in a /# ... #/ comment: (file 'blanco/_start.gsc', line 25)
 
openfile("file.txt""write");
     *
************************************ 
Script
PHP Code:
openfile("file.txt""write");
fprintln(f"Save it to file.");
closefile(f);