could not find function "navbar_proj"

[ericpgreen]

I am attempting to deploy to shinyapps.io. When I source inst/app/ui.R, I get the error could not find function "navbar_proj"

Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so

locale:
 [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8
 [4] LC_COLLATE=C.UTF-8     LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8
 [7] LC_PAPER=C.UTF-8       LC_NAME=C              LC_ADDRESS=C
[10] LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C

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

other attached packages:
 [1] radiant_1.3.1              radiant.multivariate_1.3.2
 [3] radiant.model_1.3.3        radiant.basics_1.3.0
 [5] radiant.design_1.3.0       mvtnorm_1.0-12
 [7] radiant.data_1.3.3         dplyr_0.8.3
 [9] tidyr_1.0.0                lubridate_1.7.4
[11] ggplot2_3.2.1              magrittr_1.5

[ericpgreen]

I tried a different approach without source() whereby I opened ui.R and hit "Run App". The app comes up, but when I try to republish to a new destination I get an error that "Paths should be to files within the project directory", with a reference to line 5 in global.R.

I created a project where the root is radiant/inst/app, so this is also the root directory.

[vnijs]

If you clone this repo and re-create the key settings shown in the screenshot below you should be able to host an instance of radiant on shinyapps.io. FYI I just verified this is still working by updating to: https://vnijs.shinyapps.io/radiant

[ericpgreen]

Thanks, @vnijs. I updated the files and tried to deploy again. No luck though. I got the error about the file paths again.

I tried with two different root directories: my equivalent of your GitHub/ and app. Both times I get the error message referencing line 5 of global.R.

To deploy, I'm running the app (works fine) and then hitting republish with my account details. Am I doing something wrong with the working directory or publishing?

[vnijs]

When I publish to shinyapps.io I open the radiant Rstudio project file and don't mess with the working directory. I'd recommend you create a new clone of the original repo and trying again. If that works, you can try to change things as you wish

[vnijs]

@ericpgreen I just noticed you are an educator. If you are considering using radiant for a class I'd recommend either (1) having students install on their laptops (see link below), (2) using Rstudio server, or (3) using Rstudio Cloud.

Most instructors using radiant that I know of have students install radiant on laptops. We have done this a lot by now and so the install instructions (linked below), including the all-in-one-installer for windows, work quite smoothly. On a class of 100 there are usually no more than 2-3 that get stuck on something. Let me know if you have any more questions.

https://radiant-rstats.github.io/docs/install.html

[ericpgreen]

Thanks, @vnijs. I cloned the repo again and used the existing .Rproj file (which I missed previously), but I still got the same error when I deployed (app loads fine locally).

It did work when I changed line 5 in global.R from file.exists("../../inst") to file.exists("../inst") (again I'm starting from the included .Rproj). So this gets me around the initial problem.

However, I'm getting a deploy error:

Error: Unhandled Exception: Child Task 693233796 failed: Error building image: Error fetching DiagrammeR (1.0.6) source. unable to satisfy package: DiagrammeR (1.0.6)

Ever experience this? I've contacted shinyapps.io support.

[vnijs]

The latest release of DiagrammeR had a breaking change so please use the below on your local system before deploying to the shinyapps.io. This won't be necessary anymore once the fixed version of DiagrammeR is on CRAN

remotes::install_github("vnijs/DiagrammeR")

[ericpgreen]

Thanks, @vnijs. That worked.

In summary, I learned to "run app" rather than source(), used the default project but for whatever reason needed to change the path in line 5 of global.R from file.exists("../../inst") to file.exists("../inst"), and updated DiagrammeR via remotes::install_github("vnijs/DiagrammeR").

Excited to explore.

[vnijs]

Thanks for the update @ericpgreen! I don't think you actually need either "run app" or "source". When I open ui.R in Rstudio, it already shows the button to (re) publish. I also just pushed an update to global.R that I expect will resolve the need to edit global.R. If you could do a "git pull" on the repo and try to republish to shinyapps.io when you have a moment that would be great.

BTW Did you run the "for.shinyapps.io.R" file before publishing?

[ericpgreen]

Good tip, thanks. I've mostly worked with flexdashboard before this, so helpful to know how to re-publish.

I cloned the repo again, but I got the same path error so I had to edit the global.R file again.

I did run for.shinyapps.io.R the very first time.

[vnijs]

Hmmm. I'll try this from another machine and see what I can do about the global.R issue. Thanks for reporting

[ericpgreen]

Really great work with radiant. It's impressive.

[vnijs]

Thanks :) Are you thinking of using Radiant for a class?