Deltachat 0.104 on Debian Buster: glibc 2.29 error. Solved

[19hundreds]

• Platform (linux/mac/windows): debian buster (10)
• Delta Chat Desktop Version: 0.104.0
• Expected behavior: should run after successful dpkg -i
• Actual behavior: doesn't run
• Steps to reproduce the problem: dpkg -i DeltaChat-ubuntu-19_10-0.140.0.deb
• Screenshots:
• Logs:

/opt/DeltaChat/deltachat-desktop-electron: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /opt/DeltaChat/libdeltachat/lib/x86_64-linux-gnu/libdeltachat.so)
/opt/DeltaChat/deltachat-desktop-electron: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /opt/DeltaChat/rpgp/lib/librpgp.so)

If you are trying to install DeltaChat on Debian Buster (10) use only the DeltaChat-ubuntu-19* packages. All the others require an older version of libssl.

I installed with:

sudo dpkg -i DeltaChat-ubuntu-19_10-0.104.0.deb

The installation is successful and there are no issue with apt dependencies but then when running deltachat-desktop produces the error mentioned in the logs.

SOLUTION
Use pinning to install the package libc6 from testing.

Create /etc/apt/preferences and add:

Package: *
Pin: release a=stable
Pin-Priority: 900

Package: *
Pin: release a=testing
Pin-Priority: 650

Update /etc/apt/sources.list and add a new entry for the testing repo

deb https://deb.debian.org/debian buster main contrib
deb https://deb.debian.org/debian testing main contrib

Then upgrade package with:

sudo apt install -t testing libc6

Run:

deltachat-desktop

It will work

[Jikstra]

Can you try again with 0.201.0? https://github.com/deltachat/deltachat-desktop/releases/tag/v0.201.0 It's very likely that your issue vanished by switching to the new rust core. Closing for now, feel free to reopen in case it still happens :)