Trafikverket train missing libxslt.so

Using the Check Home Assistant configuration add-on before going ahead with updating to 0.98 I get this:

[17:15:23] INFO: Installing Home Assistant: latest...
[17:15:23] INFO: Please be patient, this might take a few minutes...
WARNING: You are using pip version 19.1.1, however version 19.2.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
[17:22:15] INFO: Installed Home Assistant 0.98.1
[17:22:15] INFO: Don't worry, this temporary installation is not overwriting your current one.
[17:22:15] INFO: Making a copy of your configuration for checking...
[17:31:18] INFO: Checking your configuration against this version...
[17:44:49] ERROR: The configuration check did not pass!
[17:44:49] ERROR: See the output below for more details.
INFO:homeassistant.util.package:Attempting install of colorlog==4.0.2
Testing configuration at /tmp/config
INFO:homeassistant.util.package:Attempting install of pychromecast==3.2.2
INFO:homeassistant.util.package:Attempting install of distro==1.4.0
INFO:homeassistant.util.package:Attempting install of plexapi==3.0.6
INFO:homeassistant.util.package:Attempting install of pushbullet.py==0.11.0
INFO:homeassistant.util.package:Attempting install of pywebpush==1.9.2
INFO:homeassistant.util.package:Attempting install of pyRFXtrx==0.23
INFO:homeassistant.util.package:Attempting install of broadlink==0.11.1
INFO:homeassistant.util.package:Attempting install of aiofiles==0.4.0
INFO:homeassistant.util.package:Attempting install of backoff==1.8.0
INFO:homeassistant.util.package:Attempting install of aiogithubapi==0.2.0
INFO:homeassistant.util.package:Attempting install of integrationhelper==0.2.2
INFO:homeassistant.util.package:Attempting install of python-nest==4.1.0
INFO:homeassistant.util.package:Attempting install of home-assistant-frontend==20190828.0
INFO:homeassistant.util.package:Attempting install of mutagen==1.42.0
INFO:homeassistant.util.package:Attempting install of gTTS-token==1.1.3
INFO:homeassistant.util.package:Attempting install of xmltodict==0.12.0
INFO:homeassistant.util.package:Attempting install of psutil==5.6.3
INFO:homeassistant.util.package:Attempting install of pytrafikverket==0.1.5.9
INFO:homeassistant.util.package:Attempting install of aiohttp_cors==0.7.0
INFO:homeassistant.util.package:Attempting install of influxdb==5.2.0
Failed config
  General Errors: 
    - Platform error sensor.trafikverket_train - Error loading shared library libxslt.so.1: No such file or directory (needed by /usr/local/lib/python3.7/site-packages/lxml/etree.cpython-37m-arm-linux-gnueabihf.so)

Successful config (partial)

Commenting out my trafikverket_train sensor config makes the error go away. I’m on hass.io, 0.97.2. Hardware is a RPi3.
The configuration in question:

  - platform: trafikverket_train
    api_key: <my key here>
    trains:
    - name: "Tåg mot Karlskrona"
      from: "Kristianstad C"
      to: "Karlskrona C"
      time: 07:38
      weekday: [mon, tue, wed, thu, fri]

Any suggestions?

The problem disappeared. It was either with the change from 0.98.1 -> 0.98.2 or the update of the configuration checker to version 3.0.