Fix #2409: Pin setuptools version to fix packaging.licenses dependency issue

Co-Authored-By: Joe Moura <joao@crewai.com>

README.md

@@ -152,6 +152,11 @@ If you encounter issues during installation or usage, here are some common solut
    - Try upgrading pip: `pip install --upgrade pip`
    - If issues persist, use a pre-built wheel: `pip install tiktoken --prefer-binary`
 
+3. **ModuleNotFoundError: No module named 'packaging.licenses'**
+   - This error occurs when installing with `uv` due to newer setuptools versions
+   - Fix by downgrading setuptools: `pip install setuptools<=65.5.0`
+   - Then install CrewAI: `uv pip install crewai`
+
 ### 2. Setting Up Your Crew with the YAML Configuration
 
 To create a new CrewAI project, run the following CLI (Command Line Interface) command:

pyproject.toml

@@ -96,5 +96,5 @@ exclude = ["cli/templates"]
 exclude_dirs = ["src/crewai/cli/templates"]
 
 [build-system]
-requires = ["hatchling"]
+requires = ["hatchling", "setuptools<=65.5.0"]
 build-backend = "hatchling.build"

tests/installation/test_dependency_compatibility.py

@@ -0,0 +1,41 @@
+import subprocess
+import sys
+import os
+import pytest
+import shutil
+
+
+def test_pypika_installation():
+    """Test that pypika can be installed without packaging.licenses errors."""
+    # Check if uv is available
+    uv_path = shutil.which("uv")
+    if not uv_path:
+        pytest.skip("UV not available, skipping test")
+        
+    # Install pypika using uv
+    result = subprocess.run(
+        ["uv", "pip", "install", "pypika==0.48.9", "--no-deps"],
+        capture_output=True,
+        text=True,
+    )
+    assert result.returncode == 0, f"Failed to install pypika: {result.stderr}"
+
+
+def test_chromadb_installation():
+    """Test that chromadb can be installed without packaging.licenses errors."""
+    # Skip this test if running in CI/CD to avoid long test times
+    if "CI" in os.environ:
+        pytest.skip("Skipping in CI environment")
+    
+    # Check if uv is available
+    uv_path = shutil.which("uv")
+    if not uv_path:
+        pytest.skip("UV not available, skipping test")
+        
+    # Install chromadb using uv
+    result = subprocess.run(
+        ["uv", "pip", "install", "chromadb>=0.5.23", "--no-deps"],
+        capture_output=True,
+        text=True,
+    )
+    assert result.returncode == 0, f"Failed to install chromadb: {result.stderr}"