dash is giving an incomplete result page without the graphic based on the script

Bugdescription

Script is running properly and server also has started locally, but it seems because of a missing component after the installation of dashCoreComponents the graphic isn’t rendered - the error message is:
warning: The dependency path '' within the 'dashCoreComponents' package is invalid; cannot find 'plotly-1.48.3.min.js'. from NULL

Steps to reproduce

  1. Save the script below as a R script loclaly
  2. Run the script
    The efect is producable everytime.

Given result

  • Screenshot of the resultpage

  • Console

> library(dash)
> library(dashCoreComponents)
> library(dashHtmlComponents)
> 
> app <- Dash$new()
> 
> app$layout(
+   htmlDiv(
+     list(
+       htmlH1('Hello Dash'),
+       htmlDiv(children = "Dash: A web application framework for R."),
+       dccGraph(
+         figure=list(
+           data=list(
+             list(
+               x=list(1, 2, 3),
+               y=list(4, 1, 2),
+               type='bar',
+               name='SF'
+             ),
+             list(
+               x=list(1, 2, 3),
+               y=list(2, 4, 5),
+               type='bar',
+               name='Montr\U{00E9}al'
+             )
+           ),
+           layout = list(title='Dash Data Visualization')
+         )
+       )
+     )
+   )
+ )
> 
> 
> app$run_server()
Fire started at 127.0.0.1:8050
warning: The dependency path '' within the 'dashCoreComponents' package is invalid; cannot find 'plotly-1.48.3.min.js'. from NULL
start: 127.0.0.1:8050

sessionInfo

> session_info()
- Session info ---------------------------------------------------------------------------------------------------------------------------------------------
 setting  value                       
 version  R version 3.5.1 (2018-07-02)
 os       Windows 10 x64              
 system   x86_64, mingw32             
 ui       RStudio                     
 language en                          
 collate  German_Germany.1252         
 ctype    German_Germany.1252         
 tz       Europe/Berlin               
 date     2019-07-31                  

- Packages -------------------------------------------------------------------------------------------------------------------------------------------------
 package            * version date       lib source                                      
 assertthat           0.2.1   2019-03-21 [1] CRAN (R 3.5.1)                              
 backports            1.1.4   2019-04-10 [1] CRAN (R 3.5.3)                              
 base64enc            0.1-3   2015-07-28 [1] CRAN (R 3.5.0)                              
 brotli               1.2     2018-05-13 [1] CRAN (R 3.5.3)                              
 callr                3.3.1   2019-07-18 [1] CRAN (R 3.5.1)                              
 cli                  1.1.0   2019-03-19 [1] CRAN (R 3.5.1)                              
 codetools            0.2-16  2018-12-24 [1] CRAN (R 3.5.2)                              
 crayon               1.3.4   2017-09-16 [1] CRAN (R 3.5.1)                              
 curl                 4.0     2019-07-22 [1] CRAN (R 3.5.3)                              
 dash               * 0.1.0   2019-07-31 [1] Github (plotly/dashR@77c59cd)               
 dashCoreComponents * 1.0.0   2019-07-31 [1] Github (plotly/dash-core-components@066500b)
 dashHtmlComponents * 1.0.0   2019-07-31 [1] Github (plotly/dash-html-components@17da1f4)
 desc                 1.2.0   2018-05-01 [1] CRAN (R 3.5.1)                              
 devtools           * 2.1.0   2019-07-06 [1] CRAN (R 3.5.1)                              
 digest               0.6.20  2019-07-04 [1] CRAN (R 3.5.1)                              
 fiery                1.1.1   2018-10-22 [1] CRAN (R 3.5.3)                              
 fs                   1.3.1   2019-05-06 [1] CRAN (R 3.5.3)                              
 future               1.14.0  2019-07-02 [1] CRAN (R 3.5.3)                              
 globals              0.12.4  2018-10-11 [1] CRAN (R 3.5.2)                              
 glue                 1.3.1   2019-03-12 [1] CRAN (R 3.5.3)                              
 htmltools            0.3.6   2017-04-28 [1] CRAN (R 3.5.1)                              
 httpuv               1.5.1   2019-04-05 [1] CRAN (R 3.5.3)                              
 jsonlite             1.6     2018-12-07 [1] CRAN (R 3.5.1)                              
 later                0.8.0   2019-02-11 [1] CRAN (R 3.5.2)                              
 listenv              0.7.0   2018-01-21 [1] CRAN (R 3.5.3)                              
 magrittr             1.5     2014-11-22 [1] CRAN (R 3.5.1)                              
 memoise              1.1.0   2017-04-21 [1] CRAN (R 3.5.1)                              
 mime                 0.7     2019-06-11 [1] CRAN (R 3.5.3)                              
 packrat              0.5.0   2018-11-14 [1] CRAN (R 3.5.1)                              
 pkgbuild             1.0.3   2019-03-20 [1] CRAN (R 3.5.3)                              
 pkgload              1.0.2   2018-10-29 [1] CRAN (R 3.5.1)                              
 prettyunits          1.0.2   2015-07-13 [1] CRAN (R 3.5.1)                              
 processx             3.4.1   2019-07-18 [1] CRAN (R 3.5.3)                              
 promises             1.0.1   2018-04-13 [1] CRAN (R 3.5.1)                              
 ps                   1.3.0   2018-12-21 [1] CRAN (R 3.5.2)                              
 R6                   2.4.0   2019-02-14 [1] CRAN (R 3.5.2)                              
 Rcpp                 1.0.2   2019-07-25 [1] CRAN (R 3.5.3)                              
 remotes              2.1.0   2019-06-24 [1] CRAN (R 3.5.1)                              
 reqres               0.2.2   2018-11-12 [1] CRAN (R 3.5.3)                              
 rlang                0.4.0   2019-06-25 [1] CRAN (R 3.5.3)                              
 routr                0.3.0   2017-10-26 [1] CRAN (R 3.5.3)                              
 rprojroot            1.3-2   2018-01-03 [1] CRAN (R 3.5.1)                              
 rstudioapi           0.10    2019-03-19 [1] CRAN (R 3.5.1)                              
 sessioninfo          1.1.1   2018-11-05 [1] CRAN (R 3.5.1)                              
 stringi              1.4.3   2019-03-12 [1] CRAN (R 3.5.3)                              
 testthat             2.2.1   2019-07-25 [1] CRAN (R 3.5.3)                              
 triebeard            0.3.0   2016-08-04 [1] CRAN (R 3.5.3)                              
 urltools             1.7.3   2019-04-14 [1] CRAN (R 3.5.3)                              
 usethis            * 1.5.1   2019-07-04 [1] CRAN (R 3.5.1)                              
 uuid                 0.1-2   2015-07-28 [1] CRAN (R 3.5.2)                              
 webutils             0.6     2017-06-23 [1] CRAN (R 3.5.3)                              
 withr                2.1.2   2018-03-15 [1] CRAN (R 3.5.1)                              
 xml2                 1.2.1   2019-07-29 [1] CRAN (R 3.5.3)                              

[1] E:/R/R-3.5.1/library