Fix: Add --active flag to uv sync command to fix virtual environment detection

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

src/crewai/cli/install_crew.py

@@ -8,7 +8,7 @@ def install_crew(proxy_options: list[str]) -> None:
     Install the crew by running the UV command to lock and install.
     """
     try:
-        command = ["uv", "sync"] + proxy_options
+        command = ["uv", "sync", "--active"] + proxy_options
         subprocess.run(command, check=True, capture_output=False, text=True)
 
     except subprocess.CalledProcessError as e:

tests/cli/install_crew_test.py

@@ -0,0 +1,54 @@
+from unittest import mock
+import pytest
+import subprocess
+
+from crewai.cli.install_crew import install_crew
+
+
+@mock.patch("subprocess.run")
+def test_install_crew_with_active_flag(mock_subprocess):
+    """Test that install_crew includes the --active flag."""
+    install_crew([])
+    mock_subprocess.assert_called_once_with(
+        ["uv", "sync", "--active"], check=True, capture_output=False, text=True
+    )
+
+
+@mock.patch("subprocess.run")
+def test_install_crew_with_proxy_options(mock_subprocess):
+    """Test that install_crew correctly passes proxy options."""
+    proxy_options = ["--index-url", "https://custom-pypi.org/simple"]
+    install_crew(proxy_options)
+    mock_subprocess.assert_called_once_with(
+        ["uv", "sync", "--active", "--index-url", "https://custom-pypi.org/simple"],
+        check=True,
+        capture_output=False,
+        text=True,
+    )
+
+
+@mock.patch("subprocess.run")
+@mock.patch("click.echo")
+def test_install_crew_with_subprocess_error(mock_echo, mock_subprocess):
+    """Test that install_crew handles subprocess errors correctly."""
+    error = subprocess.CalledProcessError(1, "uv sync --active")
+    error.output = "Error output"
+    mock_subprocess.side_effect = error
+    
+    install_crew([])
+    
+    assert mock_echo.call_count == 2
+    mock_echo.assert_any_call(f"An error occurred while running the crew: {error}", err=True)
+    mock_echo.assert_any_call("Error output", err=True)
+
+
+@mock.patch("subprocess.run")
+@mock.patch("click.echo")
+def test_install_crew_with_generic_exception(mock_echo, mock_subprocess):
+    """Test that install_crew handles generic exceptions correctly."""
+    error = Exception("Generic error")
+    mock_subprocess.side_effect = error
+    
+    install_crew([])
+    
+    mock_echo.assert_called_once_with(f"An unexpected error occurred: {error}", err=True)