Caffe: [PYCAFFE] TypeError: __init__() got an unexpected keyword argument 'syntax'

[sreeram-boyapati]

Got this error while trying to run detect.py in a virtualenv. Added the $CAFFE_ROOT/python to $PYTHONPATH
Traceback:

<ipython-input-1-127394bba1cb> in <module>()
----> 1 import detect

/usr/local/python/detect.py in <module>()
     22 import time
     23 
---> 24 import caffe
     25 
     26 CROP_MODES = ['list', 'selective_search']

/usr/local/python/caffe/__init__.py in <module>()
----> 1 from .pycaffe import Net, SGDSolver
      2 from ._caffe import set_mode_cpu, set_mode_gpu, set_device, Layer, get_solver
      3 from .proto.caffe_pb2 import TRAIN, TEST
      4 from .classifier import Classifier
      5 from .detector import Detector

/usr/local/python/caffe/pycaffe.py in <module>()
     12 
     13 from ._caffe import Net, SGDSolver
---> 14 import caffe.io
     15 
     16 # We directly update methods from Net here (rather than using composition or

/usr/local/python/caffe/io.py in <module>()
      6 try:
      7     # Python3 will most likely not be able to load protobuf
----> 8     from caffe.proto import caffe_pb2
      9 except:
     10     import sys

/usr/local/python/caffe/proto/caffe_pb2.py in <module>()
     21   package='caffe',
     22   syntax='proto2',
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     24 )
     25 _sym_db.RegisterFileDescriptor(DESCRIPTOR)

TypeError: __init__() got an unexpected keyword argument 'syntax'

[sreeram-boyapati]

@sguada or anybody have any idea about the issue? I cannot run pycaffe.

[sreeram-boyapati]

Sorry, I faced this issue because I did not build google protobuf python library.

[zhenglilei]

I met the same problem, but I have installed 'protobuf'.

$protoc --version
gives the answer "libprotoc 3.0.0", showing that the protobuf has been installed

But still got the same error. Do you have any ideas?

[sreeram-boyapati]

Use protobuf 2.6.1 .
3.0.0 is in alpha stage.
Recompile caffe without python interface and protbuf 2.6.1
set(HAVE_PYTHON True) and compile it again.

[qiaohaijun]

i got the same problem

[ajtdm]

I got the same problem. This is caused by difference of arguments of FileDescriptor (and other Desctiptors) bitween 2.6.1 and 3.0.0. So I updated protobuf python lib as follows;

1. remove old version (2.6.1) of protobuf python lib

pip uninstall protobuf

if you have already installed new version (3.0.0) of python lib, you have to exec the command two times.

1. install protobuf python lib 3.0.0

cd $PROTOBUF_BUILD_DIR/python

python setup.py build

python setup.py test

python setup.py install

[dzhwinter]

Tested. faied on protobuf 3.0.0

[liboyue]

fixed using protobuf 2.6.1 :)

[danbuckler]

So I have NVIDIA-caffe-0.11.0 and DIGITS and protobuf 2.6.1 and when I run digits-devserver as soon ad I provide the path for the caffe install I get an error stack cumlinating in TypeError: init() got an unexpected keyword argument 'syntax'. I have protobuf 2.6.1 installed. protoc --version yields libprotoc 2.6.1

[JonathanJHull]

Hi,
I just fixed this problem.

I had unnecessarily installed protoc v.3.0.0 from source. v.2.5.0 was already installed. My ubuntu runs python 2.7.6. After I went back and ran make uninstall in the main directory for protobuf-master v.3.0.0, # protoc --version returned "libprotoc 2.5.0.

Next, I removed the caffe installation, recompiled it from scratch and ran make pycaffe.

After that, "import caffe" worked great and life was good.

[northeastsquare]

Hello, I solved it by:
comment ./caffe-fast-rcnn/python/caffe/proto/caffe_pb2.py , all "systax = proto " line, fix it.Ha ha

[wangg12]

@northeastsquare Great thanks! I solved this problem with your method.

[ghost]

I also solved the problem by commenting "systax = proto" lines. Thank you!

[PredragBoksic]

conda install -c conda-forge protobuf

[CALTyang]

got the same problem. My original protobuf version is 3.0 ,so I changed to 2.6.1 and recompile caffe( make all && make pycaffe),and it works ~

[ersanliqiao]

I have fixed this error by uninstall protobuf 2.6.1 and install 3.0.0a2.

[zhangboyue]

@northeastsquare, nice hacking!

[funfunhello2012]

@noreastsquare ,excellent

[shawnau]

@northeastsquare nice hack, it worked

[austingg]

make sure your protoc and python-protobuf with the same version, especially when you install python-protobuf with pip.

[yossibiton]

thanks @austingg , i managed to solve to issue thanks to your comment.
i had to install python-protobuf version 3.0 instead of 3.2 which was installed by default :
pip install https://pypi.python.org/packages/42/c7/047793776afddfd70f576691cf2d4fd2260405ad6adf7dd4b81b1fdb5c7d/protobuf-3.0.0-cp27-cp27mu-manylinux1_x86_64.whl

[stdlibrainbow]

I didn't find "systax = proto", where can I find it?

[kinglintianxia]

untuntu 16.04&cuda9.1&cudnn 7.12
$ cd caffe/python
$ for req in $(cat requirements.txt); do pip install $req; done
It auto install requirements and fix the problem!

[WilsonAir]

I solve this issue by reinstall protobuf2.6.1 from source code and recompile caffe. It woks fine!

[bitcolon]

Got the same problem today.

Solved by installing: protobuf with pip

pip install protobuf

[tfka]

Solved by installing: protobuf with pip
pip uninstall protobuf
pip install protobuf
protoc --version 3.0.0 and protobuf = 3.12.1