geojsonio | Convert many data formats to & from GeoJSON & TopoJSON | Map library

I downloaded a geojson file of Iraq's electrical grid from EnergyData. You can download the file yourself here and visit the webpage here

I tried to use geojsonio::geojson_read to read the file into R, but it threw errors. Another user helpfully pointed out that the file format provided by the Energy Data website is incorrect and does not comply with geojson format, so the filename is misleading. So they recommended I use jsonlite::read_json. While that function does read the file into R, it's not a spatial object. It's a multi-level list. I also tried sf::st_read but the object is a messy data frame. I need my final object to be a spatial lines data frame, so I can merge and crop it with another spatial lines objects and write out the resulting shapefile. But when I try sp::SpatialLinesDataFrame I can't index into the object correctly to connect the lines in the right order. I need the object in R to look like the picture on the web page, and instead its just a hot mess.

Here's my code:

I have a problem with my Shinydashboard: I created a map and i would like to show it only in a menuSubItem (TTTest1) of MenuItem "Test3". As of now, the only content that will be shown is my map and the tabBox "Legend". I assume that the sidebar I have, does not have a real functionality because even if i click on any item of the sidebar, there is no blank page - only my map and a tabBox and nothing really changes, as if it were "static".

Can anyone tell me what went wrong and where i did this (big) mistake?

I am trying to filter US the county level shape data set by either FIPS or state. The original data set can be found here. However, I am using a version that has been somewhat cleaned by plotly.

I am able to read the data into R with the following code.

I am trying to create a time line plot using leaflet and leaftime packages. I want to set custom color in addTimeline to specify each point to his groups, as follows:

I am using R in docker . I have install libraries in docker by using docker hub.but failed . Below is the error i am facing

I am new to working with JSON files so not sure how to go about this. I am trying to plot from the json file for the indigenous territories available from native-lands.ca. I can read the file as JSON but it is not in a format that I can figure out how to plot.

I am driving myself crazy and cannot find any answers to this issue. I am trying to map the colour of the polygons (NOT the fill, which I would like to keep transparent) to the factor variable TRAIL_CLASS which has 4 levels. Below is my complete code, which gives the error message "Error: Must request at least one colour from a hue palette." I have also gotten the error "Error in layer(data = data, mapping = mapping, stat = stat, geom = GeomPolygon, : object 'TRAIL_CLASS' not found" when I have tried putting the colour and/or fill outside of the aes function. However when I intentionally set all colours to purple, it has to be outside of the aes function to work properly. Anyways, how would I be able to set the colours of the line based on the TRAIL_CLASS variable?

I am trying to convert a geojson of London local authorities into a hex cartogram where each hexagon represents one local authority. It works in R but when I try to export the generated hexgrid as geojson or topojson I get the following error:

I am trying to create a Choropleth map for Iowa Counties. I downloaded the map data from https://geodata.iowa.gov/dataset/county-boundaries-iowa/resource/183e782f-2d43-4073-8524-fe8e634cf17a

I do get a map, but it is uniform instead of the color I chose from the R brewer palletes nor is it differentiated by data -