Open rempsyc opened 4 years ago
It sounds like your installation of processx has a problem. Try reinstalling it (in a new R session).
I reinstalled processx in a new R session, but same error. So I manually uninstalled from RStudio and reinstalled again, but same thing.
I wonder whether it could be due to my username having spaces and accents (though I cannot change it). I know it has given me some trouble with other packages in the past. Also, my last error trace:
> .Last.error.trace
Stack trace:
1. webshot:::webshot("https://www.r-project.org/", "r.png")
2. webshot:::phantom_run(args)
3. callr::process$new(phantom_bin, args = args, stdout = "|", stderr = "|", ...
4. .subset2(public_bind_env, "initialize")(...)
5. processx:::process_initialize(self, private, command, args, stdin, ...
6. processx:::supervisor_watch_pid(self$get_pid())
7. processx:::supervisor_ensure_running()
8. processx:::supervisor_start()
9. process$new(supervisor_path(), args = c("-p", Sys.getpid(), "-i", ...
10. .subset2(public_bind_env, "initialize")(...)
11. processx:::process_initialize(self, private, command, args, stdin, ...
12. rethrow_call(c_processx_exec, command, c(command, args), stdin, ...
x Command 'C:/Users/username/Documents/R/win-library/3.6/processx/bin/x64/supervisor.exe' not found @win/processx.c:994 (processx_exec)
If this causes the same error, then the problem is definitely with processx:
processx::process$new("echo", "hello", supervise = TRUE)
Weird characters could definitely be a problem in launching the processx supervisor. I suggest filing an issue at https://github.com/r-lib/processx/issues, and report which weird characters you have in the path.
Correct! The command does output the same error. I'll reach out to processx. Thanks.
Note: actually it isn't the same command that isn't found but pretty close so definitely something with processx.
> process$new("echo", "hello", supervise = TRUE)
Error in rethrow_call(c_processx_exec, command, c(command, args), stdin, :
Command 'echo' not found @win/processx.c:994 (processx_exec)
Type .Last.error.trace to see where the error occured
Oh, I forgot that windows might not have echo. Try dir instead of echo and see what message that gives.
Same (Windows 10 here).
> process$new("dir", "hello", supervise = TRUE)
Error in rethrow_call(c_processx_exec, command, c(command, args), stdin, :
Command 'dir' not found @win/processx.c:994 (processx_exec)
Type .Last.error.trace to see where the error occured
> .Last.error.trace
Stack trace:
1. process$new("dir", "hello", supervise = TRUE)
2. .subset2(public_bind_env, "initialize")(...)
3. processx:::process_initialize(self, private, command, args, stdin, ...
4. rethrow_call(c_processx_exec, command, c(command, args), stdin, ...
x Command 'dir' not found @win/processx.c:994 (processx_exec)
Oh, I forgot that windows might not have echo. Try dir instead of echo and see what message that gives.
FWIW dir
is also not a Windows executable:
> Sys.which("dir")
dir
""
> Sys.which("echo")
echo
""
> Sys.which("cmd")
cmd
"C:\\Windows\\SYSTEM32\\cmd.exe"
@wch Update: problem seems fixed(!) after updating to R version 4.0.2 for:
library(webshot)
webshot("https://www.r-project.org/", "r.png")
@gaborcsardi is correct I believe as process$new("dir", "hello", supervise = TRUE)
still doesn't work though.
Thanks to you all!
After installing and loading:
I run:
example(webshot)
Or the examples in the readme.md:
webshot("https://www.r-project.org/", "r.png")
And I consistently get:
Any idea why?