Unable to use Graphviz in R

Question

I elaborated an analysis of structural equations with the semPLS package, according to the following code.

fit.inicial <- plsm(data = data, strucmod = sm, measuremod = mm)

fit.semPLS<- sempls(model = fit.inicial, data = data, wscheme = "centroid")

After installing Graphviz 2.44.1 and Graphviz2.38, I modified the path (path) in the "environment variables".

However, when I try to generate the template graph, R does not recognize the function "path. Diagram". See the message that appears to me.

Error in path.Diagram(fit.semPLS, file = "data", edge.labels = "both",  : 
  não foi possível encontrar a função "path.Diagram"

Would anyone know what’s going on?