Description

Given the command:
otbcli_DimensionalityReduction -in CupriteAVIRISSubset.dat -out outpca.tif

for which I have both
CupriteAVIRISSubset.dat
CupriteAVIRISSubset.hdr
(note that the "non-hdr" file in ENVI format can have any extension (even not extension at all), as it is ignored)
I get

ERROR 1: The selected file is an ENVI header file, but to open ENVI datasets, the data file should be selected instead of the .hdr file. Please try again selecting the data file corresponding to the header file: CupriteAVIRISSubset.hdr

Nevertheless, the process goes on and completes successfully

Steps to reproduce

You can get the CupriteAVIRISSubset.dat and CupriteAVIRISSubset.hdr files from http://exelis.http.internapcdn.net/exelis/data/envi_tutorial_data/hyperspectral.zip

Configuration information

Linux Debian testing OTB-7.0.0