Running examples in ‘umx-Ex.R’ failed
The error most likely occurred in:

> ### Name: loadings.MxModel
> ### Title: Extract factor loadings from an EFA (factor analysis).
> ### Aliases: loadings.MxModel
> 
> ### ** Examples
> 
> myVars <- c("mpg", "disp", "hp", "wt", "qsec")
> m1 = umxEFA(name = "test", factors = 2, data = mtcars[, myVars])
2 latent variables were created:F1, F2. 
Running EFA with 19 parameters
Warning: In model 'EFA' Optimizer returned a non-zero status code 6. The model does not satisfy the first-order optimality conditions to the required accuracy, and no improved point for the merit function could be found during the final linesearch (Mx status RED)
[1] "Rotation results"
$loadings

Loadings:
     F1     F2    
mpg  -0.835  0.343
disp  0.855 -0.353
hp    0.609 -0.694
wt    0.983       
qsec -0.120  0.887

                  F1    F2
SS loadings    2.779 1.514
Proportion Var 0.556 0.303
Cumulative Var 0.556 0.858

$rotmat
          [,1]       [,2]
[1,] 0.9250703 -0.3797959
[2,] 0.3797959  0.9250703

[1] "Factor Correlation Matrix"
              [,1]          [,2]
[1,]  1.000000e+00 -5.551115e-17
[2,] -5.551115e-17  1.000000e+00
?umxSummary showEstimates='raw|std', digits, report= 'html', filter= 'NS' & more
Running Saturated EFA with 20 parameters

 *** caught segfault ***
address 0, cause 'memory not mapped'

Traceback:
 1: runHelper(model, frontendStart, intervals, silent, suppressWarnings,     unsafe, checkpoint, useSocket, onlyFrontend, useOptimizer)
 2: mxRun(model, silent = FALSE)
 3: FUN(X[[i]], ...)
 4: lapply(ReferenceModelHelper(x, distribution, equateThresholds),     function(model) {        if (!isS4(model))             return(model)        model <- omxAssignFirstParameters(model)        model <- mxOption(model, "Standard Errors", "No")        model <- mxOption(model, "Calculate Hessian", "No")        if (run) {            model <- mxRun(model, silent = FALSE)        }        model    })
 5: mxRefModels(model, run = TRUE)
 6: umxSummary.MxModel(m1, digits = digits, report = report)
 7: umxSummary(m1, digits = digits, report = report)
 8: umxEFA(name = "test", factors = 2, data = mtcars[, myVars])
An irrecoverable exception occurred. R is aborting now ...