Attempt to turn the most basic app into a standalone application using Photon

[LucteMarvelde]

Hi,
I am really excited to see Photon's abilities (I first saw Shiny meets electron talk by Katie, and realised Photon is your latest method)! I have struggled for a long time to share my apps.

To test Photon, I did the following:

1. install node.js (works, tested 'npm' in CMD line, recognised)

2. install git (works, tested 'git' in CMD line, recognised)

3. install Photon using your instructions

4. Open new basic shinyApplications: RStudio > File > New file > Shiny Web App... >>
   --> Name 'PhotonTestApp'
   --> multiple fFIle (ui.R/server.R)
   --> C:/ShinyApps
   Tested to see the app works, the basic Geyser data app.

5. setwd("C:\ShinyApps\PhotonTestApp\")

6. Launch Photon app builder
   --> Shiny App Directory: C:/ShinyApps/temp
   --> left default NULL in all three package inputs
   --> Build

I get the following error:

> photon:::photon_rstudioaddin()
Listening on http://127.0.0.1:3898
[1] "Selected directory: "
[1] "Selected directory: C:/ShinyApps/temp"
Running Photon
Warning in normalizePath(path.expand(path), winslash, mustWork) :
path[1]="C:\ShinyApps\temp/electron-quick-start": The system cannot find the file specified

I see that a directory was created: C:\ShinyApps\temp\electron-quick-start\ with a hidden .git directory which is empty.

Some additional info:

sessionInfo()
R version 3.6.3 (2020-02-29)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18362)

Matrix products: default

locale:
[1] LC_COLLATE=English_Australia.1252 LC_CTYPE=English_Australia.1252 LC_MONETARY=English_Australia.1252 LC_NUMERIC=C
[5] LC_TIME=English_Australia.1252

attached base packages:
[1] stats graphics grDevices utils datasets methods base

other attached packages:
[1] shiny_1.5.0

loaded via a namespace (and not attached):
[1] Rcpp_1.0.5 rstudioapi_0.11 magrittr_1.5 xtable_1.8-4 R6_2.4.1 rlang_0.4.7 fastmap_1.0.1 stringr_1.4.0 tools_3.6.3
[10] photon_0.0.1 miniUI_0.1.1.1 withr_2.2.0 htmltools_0.5.0 shinyFiles_0.8.0 ellipsis_0.3.1 digest_0.6.25 tibble_3.0.3 lifecycle_0.2.0
[19] crayon_1.3.4 later_1.1.0.1 vctrs_0.3.2 promises_1.1.1 fs_1.4.2 rsconnect_0.8.16 glue_1.4.1 mime_0.9 stringi_1.4.6
[28] compiler_3.6.3 pillar_1.4.6 shinyBS_0.61 jsonlite_1.7.0 httpuv_1.5.4 pkgconfig_2.0.3

Any help greatly appreciated!

Regards,
Luc

[freyja-bt]

Having the same problem

R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

Matrix products: default

locale:

[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

[mspandel]

Hi there,

i had the same issue.

Warning in normalizePath(path.expand(path), winslash, mustWork) :
path[1]="C:\ShinyApps\temp/electron-quick-start": The system cannot find the file specified

The problem is that the path is wrong. It should be path[1]="C:/ShinyApps/temp/electron-quick-start"

The solution I found: #22

[StanWijn]

I have the exact same problem.
@mspandel Thank you for the suggested fix. However, I think my winslash is not in the right position. Do you mind creating a pull request with the implemented fix?

EDIT: Thank you for the rapid response!

[AMillanFL]

Hi,

I have the same problem.
I try the winslash changing solution from #22 with no success. The path is now good but photon still refuse to build.
Is there a link with the last UI modifications ?

Thanks