Internal server error: Cannot get property 'inputStream' on null object

Same issue here using standalone installation with:

As indicated in the thread, the problem was in the machine’s local configuration; in my case:


#$ localectl
System Locale: LANG=es_ES.UTF-8
VC Keymap: es
X11 Layout: es

Quick fix (will look deeper later) changing it to “en_US.UTF-8”, the application worked as expected:

#$ localectl set-locale "en_US.UTF-8"

#$ localectl
System Locale: LANG=en_US.UTF-8
VC Keymap: es
X11 Layout: es