Running examples in 'psych-Ex.R' failed
The error most likely occurred in:

> ### Name: ICC
> ### Title: Intraclass Correlations (ICC1, ICC2, ICC3 from Shrout and
> ###   Fleiss)
> ### Aliases: ICC
> ### Keywords: multivariate
> 
> ### ** Examples
> 
> sf <- matrix(c(
+ 9,    2,   5,    8,
+ 6,    1,   3,    2,
+ 8,    4,   6,    8,
+ 7,    1,   2,    6,
+ 10,   5,   6,    9,
+ 6,   2,   4,    7),ncol=4,byrow=TRUE)
> colnames(sf) <- paste("J",1:4,sep="")
> rownames(sf) <- paste("S",1:6,sep="")
> sf  #example from Shrout and Fleiss (1979)
   J1 J2 J3 J4
S1  9  2  5  8
S2  6  1  3  2
S3  8  4  6  8
S4  7  1  2  6
S5 10  5  6  9
S6  6  2  4  7
> ICC(sf,lmer=FALSE)  #just use the aov procedure
Call: ICC(x = sf, lmer = FALSE)

Intraclass correlation coefficients 
                         type  ICC    F df1 df2       p lower bound upper bound
Single_raters_absolute   ICC1 0.17  1.8   5  18 0.16477      -0.097        0.64
Single_random_raters     ICC2 0.29 11.0   5  15 0.00013       0.043        0.69
Single_fixed_raters      ICC3 0.71 11.0   5  15 0.00013       0.412        0.93
Average_raters_absolute ICC1k 0.44  1.8   5  18 0.16477      -0.545        0.88
Average_random_raters   ICC2k 0.62 11.0   5  15 0.00013       0.152        0.90
Average_fixed_raters    ICC3k 0.91 11.0   5  15 0.00013       0.737        0.98

 Number of subjects = 6     Number of Judges =  4>    
> #data(sai)
> sai <- psychTools::sai
> sai.xray <- subset(sai,(sai$study=="XRAY") & (sai$time==1))
> xray.icc <- ICC(sai.xray[-c(1:3)],lmer=TRUE,check.keys=TRUE)
Some items were negatively correlated with total scale and were automatically reversed.
 This is indicated by a negative sign for the variable name.
 reversed items
   tense regretful upset worrying anxious nervous jittery high.strung worried rattledError in library.dynam(lib, package, package.lib) : 
  DLL 'Rcpp' not found: maybe not installed for this architecture?
Calls: ICC ... loadNamespace -> namespaceImport -> loadNamespace -> library.dynam
Execution halted