SOLVED: Error installing on Ubuntu 22.04, missing C++ at least v11

[lordpba]

SOLVED: pip install crewai has an error due to missing C++ version 11 compiler:

Building wheels for collected packages: chroma-hnswlib
Building wheel for chroma-hnswlib (pyproject.toml) ... error
error: subprocess-exited-with-error

× Building wheel for chroma-hnswlib (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [60 lines of output]
running bdist_wheel
running build
running build_ext
creating tmp
gcc -pthread -B /home/mario/anaconda3/envs/AI_Magi_env/compiler_compat -fno-strict-overflow -DNDEBUG -O2 -Wall -fPIC -O2 -isystem /home/mario/anaconda3/envs/AI_Magi_env/include -fPIC -O2 -isystem /home/mario/anaconda3/envs/AI_Magi_env/include -fPIC -I/home/mario/anaconda3/envs/AI_Magi_env/include/python3.12 -c /tmp/tmpjh4dkkgb.cpp -o tmp/tmpjh4dkkgb.o -std=c++14
gcc -pthread -B /home/mario/anaconda3/envs/AI_Magi_env/compiler_compat -fno-strict-overflow -DNDEBUG -O2 -Wall -fPIC -O2 -isystem /home/mario/anaconda3/envs/AI_Magi_env/include -fPIC -O2 -isystem /home/mario/anaconda3/envs/AI_Magi_env/include -fPIC -I/home/mario/anaconda3/envs/AI_Magi_env/include/python3.12 -c /tmp/tmp7u1hon26.cpp -o tmp/tmp7u1hon26.o -std=c++11
Traceback (most recent call last):
File "/home/mario/anaconda3/envs/AI_Magi_env/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in
main()
File "/home/mario/anaconda3/envs/AI_Magi_env/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/mario/anaconda3/envs/AI_Magi_env/lib/python3.12/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 251, in build_wheel
return _build_backend().build_wheel(wheel_directory, config_settings,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 410, in build_wheel
return self._build_with_temp_dir(
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 395, in _build_with_temp_dir
self.run_setup()
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/build_meta.py", line 311, in run_setup
exec(code, locals())
File "", line 115, in
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/init.py", line 104, in setup
return distutils.core.setup(**attrs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 184, in setup
return run_commands(dist)
^^^^^^^^^^^^^^^^^^
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 200, in run_commands
dist.run_commands()
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
self.run_command(cmd)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/dist.py", line 967, in run_command
super().run_command(command)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
cmd_obj.run()
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/wheel/bdist_wheel.py", line 368, in run
self.run_command("build")
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/cmd.py", line 316, in run_command
self.distribution.run_command(command)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/dist.py", line 967, in run_command
super().run_command(command)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
cmd_obj.run()
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/command/build.py", line 132, in run
self.run_command(cmd_name)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/cmd.py", line 316, in run_command
self.distribution.run_command(command)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/dist.py", line 967, in run_command
super().run_command(command)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
cmd_obj.run()
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/command/build_ext.py", line 91, in run
_build_ext.run(self)
File "/tmp/pip-build-env-mlap9xe2/overlay/lib/python3.12/site-packages/setuptools/_distutils/command/build_ext.py", line 359, in run
self.build_extensions()
File "", line 102, in build_extensions
File "", line 69, in cpp_flag
RuntimeError: Unsupported compiler -- at least C++11 support is needed!
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for chroma-hnswlib
Failed to build chroma-hnswlib
ERROR: Could not build wheels for chroma-hnswlib, which is required to install pyproject.toml-based projects

---

solution is:
sudo apt install build-essential

---

Hope can be useful to others :)))

[Cap0n3]

(Just in case) To resolve this issue on Fedora version 32 or newer, you'll need to install execute the following command in the terminal to install the necessary development tools and libraries (equivalent of the build-essential package) :

sudo dnf groupinstall "Development Tools" "Development Libraries"