Error during installation

Dear Team,

Getting the following error while installing streamlit. Please help

"ERROR: Could not build wheels for backports.zoneinfo which use PEP 517 and cannot be installed directly"
---Full error:
 Using cached tzdata-2021.5-py2.py3-none-any.whl (339 kB)
Building wheels for collected packages: backports.zoneinfo
  Building wheel for backports.zoneinfo (PEP 517) ... error
  ERROR: Command errored out with exit status 1:
   command: /opt/anaconda3/envs/st/bin/python /opt/anaconda3/envs/st/lib/python3.6/site-packages/pip/_vendor/pep517/in_process/_in_process.py build_wheel /var/folders/nl/83xqjm8x18z2ymb3nm8x1qcw0000gn/T/tmp6sxxkwg4
       cwd: /private/var/folders/nl/83xqjm8x18z2ymb3nm8x1qcw0000gn/T/pip-install-1bxuhs8t/backports-zoneinfo_bf635f132515425cad8867f2f29c99da
  Complete output (36 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.9-x86_64-3.6
  creating build/lib.macosx-10.9-x86_64-3.6/backports
  copying src/backports/__init__.py -> build/lib.macosx-10.9-x86_64-3.6/backports
  creating build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_version.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_common.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/__init__.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_zoneinfo.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/_tzpath.py -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  running egg_info
  writing src/backports.zoneinfo.egg-info/PKG-INFO
  writing dependency_links to src/backports.zoneinfo.egg-info/dependency_links.txt
  writing requirements to src/backports.zoneinfo.egg-info/requires.txt
  writing top-level names to src/backports.zoneinfo.egg-info/top_level.txt
  reading manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  reading manifest template 'MANIFEST.in'
  warning: no files found matching '*.png' under directory 'docs'
  warning: no files found matching '*.svg' under directory 'docs'
  no previously-included directories found matching 'docs/_build'
  no previously-included directories found matching 'docs/_output'
  adding license file 'LICENSE'
  adding license file 'licenses/LICENSE_APACHE'
  writing manifest file 'src/backports.zoneinfo.egg-info/SOURCES.txt'
  copying src/backports/zoneinfo/__init__.pyi -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  copying src/backports/zoneinfo/py.typed -> build/lib.macosx-10.9-x86_64-3.6/backports/zoneinfo
  running build_ext
  building 'backports.zoneinfo._czoneinfo' extension
  creating build/temp.macosx-10.9-x86_64-3.6
  creating build/temp.macosx-10.9-x86_64-3.6/lib
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/opt/anaconda3/envs/st/include -arch x86_64 -I/opt/anaconda3/envs/st/include -arch x86_64 -I/opt/anaconda3/envs/st/include/python3.6m -c lib/zoneinfo_module.c -o build/temp.macosx-10.9-x86_64-3.6/lib/zoneinfo_module.o -std=c99
  xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
  error: command 'gcc' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for backports.zoneinfo
Failed to build backports.zoneinfo
ERROR: Could not build wheels for backports.zoneinfo which use PEP 517 and cannot be installed directly

Hi @Prabhat, welcome to the Streamlit community!

What version of OSX, Python and Streamlit are you trying to use?

Best,
Randy