simInit silently fails to return a simList

[Steve Cumming]

Hi: in the following code chunk, simInit silently fails when trying to build a model from at attached Module; using the development Version of a few weeks ago  I don't see anything wrong anyhere.

What would cause simInit to return nothing without throwing an error?

```{r module_usage}

library(SpaDES)

library(magrittr)

inputDir <- file.path(tempdir(), "inputs") %>% checkPath(create = TRUE)

outputDir <- file.path(tempdir(), "outputs")

times <- list(start = 0, end = 10)

parameters <- list()

modules <- list("yieldTables")

objects <- list()

paths <- list(

  cachePath = file.path(outputDir, "cache"),

  modulePath = file.path("scfmModules"),

  inputPath = inputDir,

  outputPath = outputDir

)

mySim <- simInit(times = times, params = parameters, modules = modules, paths = paths)

if (exists("mySim")){

  tmp <-spades(mySim)

}

```

[Alex Chubaty]

Using the current development version returns the error message:

"You have created an object with the same name as the module."

Just rename the object yieldTables that the module creates (or rename the module)

[Eliot McIntire]

One of several cases that is now dealt with in the code checking.  You can't create an object called sim$yieldTables because there is already sim$yieldTables which is the sub-environment of the module. That subenvironment has all the functions defined in your module (e.g., Init, doEvent.yieldTables, etc.).  YOu can see this with ls(mySim) or if you are in a browser inside your module, ls(sim).

[Steve Cumming]

oh, that problem again.

sorry.

I was a little thrown by the silent failure.

Thanks

[Steve Cumming]

That would work had I been able to get inside the module, Eliot, but simInit never returned an sim object to explore.