ModemManager: symbol lookup error: ModemManager: undefined symbol: mm_kernel_event_properties_get_type

[Aleksander Morgado]

On 06/04/17 21:14, Jan Graczyk wrote:
> I am using Quectel UC20 mini PCIe modem on my development board and running ModemManager on it. Since ModemManager is using by default baud rate set to 57600 I have decided to move to the latest version of ModemManager (1.7.0) since there is a possibility to set udev rule for baud rate ENV{ID_MM_TTY_BAUDRATE}="115200". However after rebuilding ModemManager version 1.7.0 for ARM architecture and running it on my development board I have got the following error:
> 
> ModemManager[1624]: <debug> [1491504870.296599] [mm-plugin-manager.c:1609] load_plugins(): [plugin manager] successfully loaded 32 plugins
> ModemManager[1624]: <debug> [1491504870.304070] [main.c:106] name_acquired_cb(): Service name 'org.freedesktop.ModemManager1' was acquired
> ModemManager[1624]: <debug> [1491504870.636683] [mm-base-manager.c:573] mm_base_manager_start(): Starting automatic device scan...
> ModemManager[1624]: <debug> [1491504870.720354] [mm-base-manager.c:575] mm_base_manager_start(): Finished device scan...
> ModemManager: symbol lookup error: ModemManager: undefined symbol: mm_kernel_event_properties_get_type
> 
> [1]+  Exit 127                ModemManager -debug
> 
> The only stable version of ModemManager which runs on my development board is 1.4.0. But when using that version I need to set Quectel UC20 modem baud rate to 57600 using AT+IPR=57600 command. I would like to take advantage of ModemManager version 1.7.0 but unfortunately I am getting the above error while running it.

Looks like you didn't install the newly compiled version properly.
You're running the ModemManager daemon from git master, and looks like
it's linking to "libmm-glib" from an older version.

How did you configure ModemManager to build, and how are you running it?

-- 
Aleksander
https://aleksander.es