I checked this 3 sensor and all report correct info
title_template: "{{ state_attr('media_player.soggiorno', 'media_title') }}"
album_template: "{{ state_attr('media_player.soggiorno', 'media_album_name') }}"
artist_template: "{{ state_attr('media_player.soggiorno', 'media_artist') }}"And the attributes off the media player itself does it has artist value?
I don’t understand 
if you go to the developer tools and search for the media_player you created with my custom component this entity should have some attributes. Example for a chromecast media_player:
Hi @Sennevds, I’m looking to test out your component but having some issues installing it. Are your installation instructions still accurate? I still need to copy all the files from https://github.com/home-assistant/core/tree/dev/homeassistant/components/template into \custom_components\template directory?
I saw there is a manifest.json and __init__.py file in your repo. Should that replace the files in the \template\ directory?
Also, is there any way to set other attributes like entity_picture? I’m hoping to use your template player to show the cover art from the Steam game I’m currently playing.
you need to place the files in the following folder: {configfolder}/custom_components/media_player_template
Entity picture isn’t possible at this moment. Maybe if I have time this week I will integrate it
Any update on the artist attribute?
hadn’t had the time to check this out. Hoping to have some time this week.
great! 
I look forward for the updates
I’ve updated the repo. Artist and album works(but you need to set the media_content_type_template to music)
Entity_picture is set by using media_image_url_template
Thanks for adding the feature! I defined the media_image_url_template for my Steam media player and the game image shows up. I tried adding the template media player with Universal media player , but it seems to have some problems pulling the entity picture. I think it’s a problem with Universal media player component, not with your component.
Do you know why template media player’s attribute is called entity_picture_local instead of entity_picture? That might be the reason why the entity picture is not picked up by the Universal media player.
Your template media player looks like this in my dashboard:
Media players have a switch if the picture you try to show is only locally available.
(for technical info: https://github.com/home-assistant/core/blob/fcdb54d8780900fb85e6c20d5382cfd13b69a0b3/homeassistant/components/media_player/init.py#L780-L801)
I didn’t implement this. So at this moment the picture it shows needs to be remotely available.
You steam media player looks nice. Is it the standard steam integration or did you do something special?
I use the mini-media-player custom lovelace card to display my media players. I’m also using the Steam component and setup some templates in your component to show the state, title, and entity picture.
- platform: media_player_template
media_players:
steam:
friendly_name: Steam
current_source_template: "{{ states('input_text.selected_source') }}"
value_template: >-
{% if state_attr('sensor.steam_76561197977455441', 'game_image_main') != None %}
on
{% else %}
off
{% endif %}
title_template: "{{ state_attr('sensor.steam_76561197977455441', 'game') }}"
album_template: "{{ state_attr('sensor.steam_76561197977455441', 'game') }}"
media_image_url_template: "{{ state_attr('sensor.steam_76561197977455441', 'game_image_main') }}"
Hi, It’s me again.
Please can you specify where I have to add "media_content_type_template "
This is my config now but it’s invalid:
- platform: media_player_template
media_players:
denon:
friendly_name: Denon
value_template: >
{% if is_state_attr("remote.soggiorno", "current_activity", "Ascolta Spotify") -%}
on
{%- else -%}
off
{%- endif %}
turn_on:
service: remote.turn_on
entity_id: remote.soggiorno
data:
activity: 'Ascolta Spotify'
turn_off:
service: remote.turn_on
data:
entity_id: remote.soggiorno
activity: 'PowerOff'
volume_up:
service: remote.send_command
data:
entity_id: remote.soggiorno
command:
- VolumeUp
device: 45938921
volume_down:
service: remote.send_command
data:
entity_id: remote.soggiorno
command:
- VolumeDown
device: 45938921
play:
service: media_player.media_play
data:
entity_id: media_player.soggiorno
pause:
service: media_player.media_pause
data:
entity_id: media_player.soggiorno
next:
service: media_player.media_next_track
data:
entity_id: media_player.soggiorno
previous:
service: media_player.media_previous_track
data:
entity_id: media_player.soggiorno
mute:
service: remote.send_command
data:
entity_id: remote.soggiorno
command:
- Mute
device: 45938921
inputs:
Spotify:
service: remote.send_command
data:
entity_id: remote.soggiorno
command:
- InputMediaPlayer
device: 45938921
# # album_art_template: "{{ states('input_text.album_art') }}"
title_template: "{{ state_attr('media_player.soggiorno', 'media_title') }}"
album_art_template: "{{ state_attr('media_player.soggiorno', 'entity_picture_local') }}"
album_template: "{{ state_attr('media_player.soggiorno', 'media_album_name') }}"
artist_template: "{{ state_attr('media_player.soggiorno', 'media_artist') }}"
media_content_type_template: "music"
EDIT: maybe because it’s available only within HACS? But I searched for it and I didn’t found it the repository.
I will check your config tomorrow. I’ve created a pull request to add it to hacs but it hasn’t been merged. Did you download the latest version from github?
Edit:
I’ve just tested it myself and if I add media_content_type_template: "music" it works like expected
I copied the media_player_template folder inside my custom_components
and reboot.
Now I see this error message:
Invalid config
The following integrations and platforms could not be set up:
* template
* media_player_template.media_player
Please check your config and logs).
Could you give me the error in the log file?
Sure.
I have different error messages:
Logger: homeassistant.setup
Source: setup.py:138
First occurred: 0:19:07 (1 occurrences)
Last logged: 0:19:07
Setup failed for template: No setup function defined.
Logger: homeassistant.setup
Source: setup.py:118
First occurred: 0:19:07 (1 occurrences)
Last logged: 0:19:07
Unable to set up dependencies of media_player_template. Setup failed for dependencies: template
Logger: homeassistant.setup
Source: setup.py:280
First occurred: 0:19:07 (1 occurrences)
Last logged: 0:19:07
Unable to prepare setup for platform media_player_template.media_player: Could not set up all dependencies.
what version of Home Assistant are you running?