Pareto calculations : Error in serialize(data, node$con) : error writing to connection

[LMiddles]

Project Robyn

Describe issue

Models have built, issue arises when running output collect. Ts validation, ROAS convergence, pareto matrix etc all produced in folder. error message when calculating pareto fronts

Running Pareto calculations for 25000 models on 5 fronts... Calculating response curves for all models' media variables (2510)... Error in serialize(data, node$con) : error writing to connection

Provide reproducible example

OutputCollect <- robyn_outputs(

• InputCollect, OutputModels,
• pareto_fronts = 5, # automatically pick how many pareto-fronts to fill min_candidates (100)

• min_candidates = 100, # top pareto models for clustering. Default to 100

• calibration_constraint = 0.1, # range c(0.01, 0.1) & default at 0.1

• csv_out = "pareto", # "pareto", "all", or NULL (for none)
• clusters = TRUE, # Set to TRUE to cluster similar models by ROAS. See ?robyn_clusters
• export = create_files, # this will create files locally
• plot_folder = robyn_directory, # path for plots exports and files creation
• plot_pareto = create_files # Set to FALSE to deactivate plotting and saving model one-pagers
• ) WARNING: Provided 'plot_folder' doesn't exist. Using current working directory: xxxxx/Documents

  Running Pareto calculations for 25000 models on 5 fronts... Calculating response curves for all models' media variables (2510)... Error in serialize(data, node$con) : error writing to connection

Environment & Robyn version

Make sure you're using the latest Robyn version before you post an issue.

• Robyn 3.10.3’
• R 4.3.1

[LMiddles]

sessionInfo()$R.version $platform [1] "x86_64-w64-mingw32"

$arch [1] "x86_64"

$os [1] "mingw32"

$crt [1] "ucrt"

$system [1] "x86_64, mingw32"

$status [1] ""

$major [1] "4"

$minor [1] "3.1"

$year [1] "2023"

$month [1] "06"

$day [1] "16"

$svn rev [1] "84548"

$language [1] "R"

$version.string [1] "R version 4.3.1 (2023-06-16 ucrt)"

$nickname [1] "Beagle Scouts"

[gufengzhou]

I see you're still having this issue. It's very difficult to debug because I can't reproduce your error. Have you googled your error message? It seems like a OS specific problem with the parallel process.

[gufengzhou]

Please see the latest related issue https://github.com/facebookexperimental/Robyn/issues/964