make.py fails with error: AttributeError: module 'icu' has no attribute 'make' Error

[eyalroz]

I'm trying to build OnlyOffice from sources, using the instructions on the web.

After struggling with deps.py for a while, I sort of got past it . Now, make.py runs, and at some point I get:

Extracting archive: ./cef_binary.7z
--
Path = ./cef_binary.7z
Type = 7z
Physical Size = 92162613
Headers Size = 1135
Method = LZMA2:24
Solid = +
Blocks = 1

Everything is Ok                     

Folders: 4
Files: 68
Size:       381880513
Compressed: 92162613
delete warning [file not exist]: ./cef_binary.7z.data
Traceback (most recent call last):
  File "/home/eyalroz/src/onlyoffice/build_tools/./make.py", line 85, in <module>
    make_common.make()
  File "/home/eyalroz/src/onlyoffice/build_tools/scripts/core_common/make_common.py", line 41, in make
    icu.make()
    ^^^^^^^^
AttributeError: module 'icu' has no attribute 'make'
Error (./make.py): 1

build_tools base repo version:
I cloned the build tools repository about an hour ago, commit a60bc78 .

Operating system:
Devuan GNU/Linux Excalibur (it's like Debian Trixie but without systemd), on an x86_64 machine.

Python version is 3.12.8.

Compiler version:
GCC 14.2.0