Interactive Plots Error

Im trying to create interactive plot but always get this error at the viewer:
/session/viewhtml2ee45cc7542d/index.html?viewer_pane=1&capabilities=1&host=http%3A%2F%2F127.0.0.1%3A18983 not found


Installed libraries:
ggplot2
shiny
htmlwidgets
ggplotly

Kindly suggest solution!