151241.378 INFO … livekit.agents Finished downloading files for livekit.plugins.turn_detector (.venv) wesley@wesley:~/Documents/projects/popai/voice-agent-demo/demo$ lk agent deploy Using project [pb] Using agent [CA_faN2XTRdDpjt] Detected agent language [python.uv] [+] Building 30.6s (15/15) FINISHED => [internal] load remote build context 0.1s => copy /context / 0.1s => resolve image config for docker-image://docker.io/docker/dockerfile:1 0.1s => CACHED docker-image://docker.io/docker/dockerfile:1@sha256:b6afd42430b15f2d2a4c5a02b919e98a525b785b1aaff16747d2f623364e39b6 0.0s => => resolve docker.io/docker/dockerfile:1@sha256:b6afd42430b15f2d2a4c5a02b919e98a525b785b1aaff16747d2f623364e39b6 0.0s => [internal] load metadata for ghcr.io/astral-sh/uv:python3.13-bookworm-slim 0.1s => [ 1/10] FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim@sha256:531f855bda2c73cd6ef67d56b733b357cea384185b3022bd09f05e002cd144ca 0.0s => => resolve ghcr.io/astral-sh/uv:python3.13-bookworm-slim@sha256:531f855bda2c73cd6ef67d56b733b357cea384185b3022bd09f05e002cd144ca 0.0s => CACHED [ 2/10] RUN adduser --disabled-password --gecos "" --home "/app" --shell "/sbin/nologin" --uid "10001" appuser 0.0s => CACHED [ 3/10] RUN apt-get update && apt-get install -y gcc g++ python3-dev && rm -rf /var/lib/apt/lists/* 0.0s => CACHED [ 4/10] WORKDIR /app 0.0s => CACHED [ 5/10] COPY pyproject.toml uv.lock ./ 0.0s => CACHED [ 6/10] RUN mkdir -p src 0.0s => CACHED [ 7/10] RUN uv sync --locked 0.0s => [ 8/10] COPY . . 0.1s => [ 9/10] RUN chown -R appuser:appuser /app 26.5s => ERROR [10/10] RUN uv run src/agent.py download-files 1.1s ------ > [10/10] RUN uv run src/agent.py download-files: 0.254 Building agent-starter-python @ file:///app 0.985 Built agent-starter-python @ file:///app 0.998 Uninstalled 1 package in 10ms 0.999 Installed 1 package in 1ms 1.059 Traceback (most recent call last): 1.059 File "/app/src/agent.py", line 4, in <module> 1.059 from idlelib.debugobj import dispatch 1.059 File "/usr/local/lib/python3.13/idlelib/debugobj.py", line 15, in <module> 1.059 from idlelib.tree import TreeItem, TreeNode, ScrolledCanvas 1.059 File "/usr/local/lib/python3.13/idlelib/tree.py", line 19, in <module> 1.059 from tkinter import * 1.059 File "/usr/local/lib/python3.13/tkinter/__init__.py", line 38, in <module> 1.059 import _tkinter # If this fails your Python may not be configured for Tk 1.059 ^^^^^^^^^^^^^^^ 1.059 ImportError: libtk8.6.so: cannot open shared object file: No such file or directory ------ unable to deploy agent: build failed for iad.ocir.io/axyci3pr8vxm/production-cloud-agents:p-mfd71j7pvi7-ca-fan2xtrddpjt-v20260217181255: failed to solve: process "/bin/sh -c uv run src/agent.py download-files" did not complete successfully: exit code: 1 (.venv) wesley@wesley:~/Documents/projects/popai/voice-agent-demo/demo$

Thanks for reaching out, Wesley. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

I dont need any of that. this is pyproject.toml

[build-system]
requires = ["setuptools>=61.0", "wheel"]
build-backend = "setuptools.build_meta"

[project]
name = "agent-starter-python"
version = "1.0.0"
description = "Simple voice AI assistant built with LiveKit Agents for Python"
requires-python = ">=3.10, <3.14"

dependencies = [
    "livekit-agents[silero,turn-detector]~=1.3",
    "livekit-plugins-noise-cancellation~=0.2",
    "python-dotenv",
]

[dependency-groups]
dev = [
    "pytest",
    "pytest-asyncio",
    "ruff",
]

[tool.setuptools.packages.find]
where = ["src"]

[tool.setuptools.package-dir]
"" = "src"

[tool.pytest.ini_options]
asyncio_mode = "auto"
asyncio_default_fixture_loop_scope = "function"

[tool.ruff]
line-length = 88
target-version = "py39"

[tool.ruff.lint]
select = ["E", "F", "W", "I", "N", "B", "A", "C4", "UP", "SIM", "RUF"]
ignore = ["E501"]  # Line too long (handled by formatter)

[tool.ruff.format]
quote-style = "double"
indent-style = "space"

and this is livekit.toml

[project]
  subdomain = "popai-alu42t1z"

[agent]
  id = "CA_faN2XTRdDpjt"

Thanks — and thanks for sharing the files. Since you don’t need any GUI/idle functionality, the cleanest fix is to remove whatever is importing `idlelib`/`tkinter` so the build no longer requires the Tk system libs. What to do next (quick checklist and exact steps) 1) Search for the import • Run this in your project root: ◦ grep -R "idlelib" -n . ◦ grep -R "tkinter" -n . • This will show which file(s) import them. The build trace showed

src/agent.py

imports

idlelib.debugobj

— start there. 2) Remove or guard the import in

src/agent.py

• If you have a line like

from idlelib.debugobj import dispatch

or

import idlelib

, remove it. • If you only need that code locally for debugging, wrap it so it won’t run during the Docker build:

import os

if os.environ.get("LOCAL_DEV") == "1":
    from idlelib.debugobj import dispatch  # only in local dev

• Or move that debug-only code into a separate script that isn’t run during build. 3) Check dependencies for accidental imports • Your pyproject lists

livekit-agents[silero,turn-detector]

and

livekit-plugins-noise-cancellation

. If the grep finds no imports in your code, see if any local package in

src/

imports

idlelib

. Built packages from PyPI rarely pull

idlelib

by default, so it’s likely in your own code. 4) Rebuild and verify • Re-run your build/deploy command: ◦ lk agent deploy • If the import is removed, the

ImportError: libtk8.6.so

should no longer appear and the

uv run src/agent.py download-files

step will complete. If the grep shows nothing and the error persists • Tell me the grep results and paste the top of

src/agent.py

(first ~40 lines). I’ll point out exactly which line to change or provide a minimal patch.