# PortfolioAnalytics R package - Error with the function "create.EfficientFrontier"

Issue

The function create.EfficientFrontier from the PortfolioAnalytics package is outputting an error message that reads:

Error in colnames<-(*tmp*, value = c("mean", "StdDev", "out", "w.Asset1",  :
attempt to set 'colnames' on an object with less than two dimensions


Troubleshooting performed so far without success

1. Searched for identical cases - found a few cases with the same error message but output from different functions
2. Checked if the covariance matrix was not positive definite
3. Had recently updated the zoo package so I reinstalled the older version
4. Besides my own code, I tried to run the example codes I found in two different blogs however, I got the exact same error once I tried to execute the function "create.EfficientFrontier".

You can check the link below for the code and specific data set in order to try to reproduce my error:

Efficient Frontier Demo from Ross Bennett (PortfolioAnalytics developer)

Three different data sets and the same error, so I suppose I might have some basic misconfiguration issue on my RStudio.

Any ideas on what the culprit could be?