[BUG] AttributeError: 'list' object has no attribute 'get'

[norzog]

Description

this seems to be a misidentification of a dictionary as a list though i may be missing something

Steps to Reproduce

from a new install use the create crew command and select ollama run the crew and the error will appear.

Expected behavior

I expected my crew to execute but instead it stalls out on this error regardless of the formatting changes i make.

Screenshots/Code snippets

crewai run
/home/ghebner/anaconda3/envs/crewAI/lib/python3.12/site-packages/pydantic/_internal/_config.py:345: UserWarning: Valid config keys have changed in V2:

• 'fields' has been removed
  warnings.warn(message, UserWarning)
  Running the Crew
  /home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/pydantic/_internal/_config.py:345: UserWarning: Valid config keys have changed in V2:
• 'fields' has been removed
  warnings.warn(message, UserWarning)
  Traceback (most recent call last):
  File "/home/ghebner/crewAI/developercrew1/.venv/bin/run_crew", line 8, in
  sys.exit(run())
  ^^^^^
  File "/home/ghebner/crewAI/developercrew1/src/developercrew1/main.py", line 21, in run
  Developercrew1().crew().kickoff(inputs=inputs)
  ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/project/utils.py", line 7, in memoized_func
  cache[key] = func(*args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/project/annotations.py", line 80, in wrapper
  task_instance = task_method(self)
  ^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/project/utils.py", line 7, in memoized_func
  cache[key] = func(*args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/project/annotations.py", line 23, in wrapper
  result = func(*args, **kwargs)
  ^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/src/developercrew1/crew.py", line 60, in code_writing_task
  return Task(
  ^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/pydantic/main.py", line 214, in init
  validated_self = self.pydantic_validator.validate_python(data, self_instance=self)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/agents/agent_builder/base_agent.py", line 137, in process_model_config
  return process_config(values, cls)
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ghebner/crewAI/developercrew1/.venv/lib/python3.12/site-packages/crewai/utilities/config.py", line 18, in process_config
  config = values.get("config", {})
  ^^^^^^^^^^
  AttributeError: 'list' object has no attribute 'get'
  An error occurred while running the crew: Command '['uv', 'run', 'run_crew']' returned non-zero exit status 1.

Operating System

Ubuntu 20.04

Python Version

3.10

crewAI Version

0.86.0

crewAI Tools Version

0.25.8

Virtual Environment

Conda

Evidence

AttributeError: 'list' object has no attribute 'get'
An error occurred while running the crew: Command '['uv', 'run', 'run_crew']' returned non-zero exit status 1.

Possible Solution

none

Additional context

none

[theCyberTech]

Can you share your code please

[norzog]

I have included crew.py, agents.yaml and tasks.yaml. full disclosure i am relatively inexperienced and this is my first bug post. I appreciate any assistance. I've been stumped by this by an embarrassingly long period of time though my gut says I'm missing something obvious i cant find it.

the following is crew.py:

from crewai import Agent, Crew, Process, Task
from crewai.project import CrewBase, agent, crew, task
from crewai_tools import (
CodeInterpreterTool,
FileReadTool,
RagTool,
FileWriterTool,
)

CodeInterpreter=CodeInterpreterTool()
FileWriter=FileWriterTool()
FileRead=FileReadTool()
Rag1=RagTool()

@crewbase
class Developercrew1():
"""Developercrew1 crew"""

# Learn more about YAML configuration files here:
# Agents: https://docs.crewai.com/concepts/agents#yaml-configuration-recommended
# Tasks: https://docs.crewai.com/concepts/tasks#yaml-configuration-recommended

agents_config = 'config/agents.yaml'
tasks_config = 'config/tasks.yaml'

# If you would like to add tools to your agents, you can learn more about it here:
# https://docs.crewai.com/concepts/agents#agent-tools
@agent
def code_writer(self) -> Agent:
	return Agent(
		config=self.agents_config['code_writer'],
		tools=[CodeInterpreter, FileWriter, FileRead, Rag1],
		verbose=True
	)

@agent
def safety_and_security(self) -> Agent:
	return Agent(
		config=self.agents_config['safety_and_security'],
		tools=[CodeInterpreter, FileWriter, FileRead, Rag1],
		verbose=True
	)

@agent
def quality_control(self) -> Agent:
	return Agent(
		config=self.agents_config['quality_control'],
		tools=[CodeInterpreter, FileWriter, FileRead, Rag1],
		verbose=True
	)

# To learn more about structured task outputs, 
# task dependencies, and task callbacks, check out the documentation:
# https://docs.crewai.com/concepts/tasks#overview-of-a-task
@task
def code_writing_task(self) -> Task:
	return Task(
		config=self.tasks_config['code_writing_task'],
		output_file='code_writing_task_output.md'
	)

@task
def safety_and_security_task(self) -> Task:
	return Task(
		config=self.tasks_config['safety_and_security_task'],
		output_file='safety_and_security_task_output.md'
	)

@task
def quality_control_task(self) -> Task:
	return Task(
		config=self.tasks_config['quality_control_task'],
		output_file='quality_control_task_output.md'
	)

@crew
def crew(self) -> Crew:
	"""Creates the Developercrew1 crew"""
	# To learn how to add knowledge sources to your crew, check out the documentation:
	# https://docs.crewai.com/concepts/knowledge#what-is-knowledge

	return Crew(
		agents=self.agents, # Automatically created by the @agent decorator
		tasks=self.tasks, # Automatically created by the @task decorator
		process=Process.sequential,
		verbose=True,
		planning=True,
		memory=True,
		embedder={
	        "provider": "ollama",
	        "config": {
	            "model": "nomic-embed-text"
	        }
		},
	)

		# process=Process.hierarchical, # In case you wanna use that instead https://docs.crewai.com/how-to/Hierarchical/

the following is agents.yaml:

code_writer:
role: >
senior code writer
goal: >
to produce high quality well researched code that adheres to the best coding practices
backstory: >
I am a highly skilled software developer with expertise in multiple programming languages and frameworks with my primary responsibility being to write clean maintainable code for various applications

safety_and_security:
role: >
safety and security
goal: >
to identify and mitigate potential security risks in code as well as preventing malicious actions and ensure that all code adheres to security best practices and compliance requirements
backstory: >
I am a cybersecurity expert with a deep understanding of software vulnerabilities threat models and secure coding practices with my primary responsibility being the safety and security of all code produced by the team

quality_control:
role: >
quality control
goal: >
to preform thorough code reviews and identify performance issues as well as ensuring all code meets the highest standards of quality and reliability while complying with all laws and regulations that could apply
backstory: >
I am a seasoned software tester with extensive experience in code review testing methodologies and quality assurance with my primary responsibilities being the quality and legal compliance of generated code and outputs produced by other agents

The following is tasks.yaml:

code_writing_task:
description: >
write the complete python code for a playable snake game the game should adhere to classic snake mechanics including player control of a snake that grows by eating food and avoids self collisions and wall collisions
expected_output: >
a fully functional python code for a playable snake game including snake movement food generation collision detection with self and walls as well as score keeping
agent: code_writer

safety_and_security_task:
description: >
analyze the code generated in task 1 for potential security vulnerabilities or risks including checking for security holes malicious code buffer overflows and other issues that could harm users or systems
expected_output: >
a detailed report outlining potential security concerns safety hazards and recommendations for secure coding practices to mitigate risks
agent: safety_and_security

quality_control_task:
description: >
test and evaluate the game code from task 1 ensure the snake game functions correctly and compliantly while adhering to the classic snake game concept test edge cases and standard game play
expected_output: >
a comprehensive quality control report detailing testing processes methods used and test cases with identified issues like bugs and glitches and recommendations for improvement as well as confirmation that the game successfully accomplishes all objectives in a playable format
agent: quality_control