symbol lookup error

[Raffadiely]

when attempting to preload the library with LD_PRELOAD=/usr/local/lib/spotify-adblock.so spotify, an error is returned and Spotify does not open.

The error says:
/bin/sh: symbol lookup error: /usr/local/lib/spotify-adblock.so: undefined symbol: cef_string_userfree_utf16_free

This happens regardless of whether I point LD_PRELOAD at the .so created from compiling, or the .so downloaded from the GitHub release page.

This happens regardless of which shell I run the command from (I have tried fish, bash, and sh), though fish reports an exit code of [127] and when using bash the error instead begins with "/bin/bash".

When using a spotify-adblock.desktop file as described in the README and attempting to launch with wofi, Spotify simply does not open. I assume that the same error is occurring invisibly when wofi runs the command.

I am running glibc Void Linux, with xbps updates run this morning, and the Spotify that is available via xbps-src - 1.1.68 as of this writing.

I am lost as to what I could be doing differently and have been unable to find a solution from searching online.
I'm happy to provide any other info that might be helpful.

[abba23]

Sounds like the same problem as #2. The package puts a shell script in your PATH instead of the actual Spotify binary, so it tries to load the adblocking library into /bin/bash first when you execute spotify, which fails. Looking at the script, something like

LD_LIBRARY_PATH=/usr/libexec/spotify LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/libexec/spotify/spotify

might work for you.

[Raffadiely]

This did seem to work, thank you! Spotify launches, and I can see cef_urlrequest_create(s) being logged in the terminal I issued that command in. Ads do not appear.

Now, however, with the library loaded, Spotify seems unable to play any music.
When I select a song, a blue alert appears that says "Spotify can't play this right now. If you have the file on your computer you can import it." and an error appears in the terminal:
GLib-GIO-CRITICAL **:[timestamp]: g_dbus_connection_send_message: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

Should I close this issue and open another to address this?

[Raffadiely]

Just a brief update, for whatever reason trying again today Spotify has no problems. I've created a .desktop file that preloads the .so and targets the Spotify executable directly instead of the sh file, and while that did not work yesterday it seems to be fine now. I can open up Spotify and play music, and no ads appear in the interface or play between songs, exactly as intended.

No idea what was preventing it from playing before, but I'll close this issue.

Thanks again for all!

[efe3535]

LD_LIBRARY_PATH=/opt/spotify/spotify-client LD_PRELOAD=/usr/local/lib/spotify-adblock.so /opt/spotify/spotify-client/spotify
On Gentoo, Spotify was installed at /opt/spotify/spotify-client, changed accordingly and it works.

[tubbadu]

for me on Fedora 36 spotify is installed is /usr/bin/spotify, and either

LD_LIBRARY_PATH=/usr/bin/spotify LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/bin/spotify

or

LD_PRELOAD=/usr/local/lib/spotify-adblock.so spotify

still gives me this error

[ghost]

LD_LIBRARY_PATH=/usr/lib64/spotify-client LC_NUMERIC=en_US.utf8 LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/lib64/spotify-client/spotify

for fedora with lpf

[liukliukliuk]

LD_LIBRARY_PATH=/usr/lib64/spotify-client LC_NUMERIC=en_US.utf8 LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/lib64/spotify-client/spotify

for fedora with lpf

it worked for me, but how can i make this the default spotify, so i could open it from the applications menu?

[efe3535]

copy spotify's desktop file (/usr/share/applications/spotify.desktop) and create a new one (/usr/local/share/spotify_adblock.desktop etc.), change Name section to "Spotify (adblock)"
Modify "Exec=LD_LIBRARY_PATH=/usr/lib64/spotify-client LC_NUMERIC=en_US.utf8 LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/lib64/spotify-client/spotify"

It should look like this:

[Desktop Entry]
Type=Application
Name=Spotify (adblock)
GenericName=Music Player
Icon=spotify-client
TryExec=spotify
Exec=LD_LIBRARY_PATH=/usr/lib64/spotify-client LC_NUMERIC=en_US.utf8 LD_PRELOAD=/usr/local/lib/spotify-adblock.so /usr/lib64/spotify-client/spotify
Terminal=false
MimeType=x-scheme-handler/spotify;
Categories=Audio;Music;Player;AudioVideo;
StartupWMClass=spotify

I haven't tested but it'll probably work.

[abba23]

With 14a0e8e, this problem is possibly solved and editing of wrapper scripts not necessary anymore.