ConTeXt Error Information
Error   ! Undefined control sequence
File    ./test3.tex
Line    4

 1     \usemodule
 2     [gnuplot] 
 3     
 4 >>  \setupGNUPLOTterminal
 5     [context]
 6     [width=5in,height=2.5in,fontscale=0.9] 
 7     
 8     \setupGNUPLOTterminal
 9     [tikz][width=5in,height=2.5in,fontscale=0.9] 
10     
11     \starttext
12     \startGNUPLOTinclusions
13     set samples 400
14     set key left Left reverse            
Job Name: test3     ConTeXt Version: 2020.03.10 14:52     Real Page: 1     Page: 1