rbindlist error in buildExplainer

[machuck]

Error in rbindlist(append(list(tree_breakdown), list(leaf_breakdown))) :
Item 2 has 3 columns, inconsistent with item 1 which has 2 columns. If instead you need to fill missing columns, use set argument 'fill' to TRUE.

[jbohart]

FYI - had same problem and fixed it by making sure my train data was xgb.DMatrix being passed in.

[andysw90]

I had this issue. The CRAN xgboost 1.5.2.1 does not save feature names when saving an xgb dmatrix to file (dmlc/xgboost#1151). If I manually add the feature names back in to the loaded xgb Dmatrix (with colnames(dmat) <- then the issue resolves.