Failed to install tesserocr for Tesseract v4 - MacOS - python-3.x

Question

I'm trying to pip install tesserocr but encountering the below error.
I've tried a few different ways to install suggested on its doc, all of which with no avail.
At this point I'm certain the issue is not related to this package (since my friend installed it on the his Mac with no problems, I also installed on a Ubuntu VM w/o issue).
The error seems to be c++ library since it cannot find headers or in Tesseract-OCR's source code (?), however before the error line it successfully finds .
I also have pytesseract installed w/o issue.
I'm hoping somebody here can help debug what's causing this issue.
My tesseract (installed through brew) version is:
tesseract 4.0.0
leptonica-1.76.0
libjpeg 9c : libpng 1.6.35 : libtiff 4.0.9 : zlib 1.2.11
Thanks and let me know what other info you might need.
Failed building wheel for tesserocr
Running setup.py clean for tesserocr
Failed to build tesserocr
Installing collected packages: tesserocr
Running setup.py install for tesserocr ... error
Complete output from command /Users/charlieyou/miniconda3/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-install-wgh41bv0/tesserocr/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/2h/ty244jbd1vd3d1l0m4k3_g980000gn/T/pip-record-0grp17wc/install-record.txt --single-version-externally-managed --compile:
pkg-config failed to find tesseract/lept libraries: b"Package tesseract was not found in the pkg-config search path.\nPerhaps you should add the directory containing `tesseract.pc'\nto the PKG_CONFIG_PATH environment variable\nNo package 'tesseract' found\n"
Supporting tesseract v4.0.0
Building with configs: {'libraries': ['tesseract', 'lept'], 'cython_compile_time_env': {'TESSERACT_VERSION': 262144}}
running install
running build
running build_ext
building 'tesserocr' extension
creating build
creating build/temp.macosx-10.7-x86_64-3.6
gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/Users/charlieyou/miniconda3/include -arch x86_64 -I/usr/local/include -I/Users/charlieyou/miniconda3/include/python3.6m -c tesserocr.cpp -o build/temp.macosx-10.7-x86_64-3.6/tesserocr.o -std=c++11 -DUSE_STD_NAMESPACE
warning: include path for stdlibc++ headers not found; pass '-std=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
In file included from tesserocr.cpp:603:
**/usr/local/include/tesseract/unichar.h:24:10: fatal error: 'cstring' file not found
#include <cstring>**
^~~~~~~~~
1 warning and 1 error generated.
error: command 'gcc' failed with exit status 1

Answer 1

I had the same problem on my mac,
You should try install the package with conda :
conda install -c mcs07 tesserocr

Answer 2

you can try : xcode-select --install
and I also can't install it , my error message is :
error: command '/usr/bin/clang' failed with exit status 1