tankcong opened a new issue #115: URL: https://github.com/apache/rocketmq-client-python/issues/115
**BUG REPORT** 1. Please describe the issue you observed: running samples/producer.py with error: > Traceback (most recent call last): File "producer.py", line 19, in <module> from rocketmq.client import Producer, Message, TransactionMQProducer, TransactionStatus File "/usr/local/lib64/python3.6/site-packages/rocketmq/client.py", line 24, in <module> from .ffi import ( File "/usr/local/lib64/python3.6/site-packages/rocketmq/ffi.py", line 173, in <module> dll.CreateOrderlyProducer.argtypes = [c_char_p] File "/usr/lib64/python3.6/ctypes/__init__.py", line 356, in __getattr__ func = self.__getitem__(name) File "/usr/lib64/python3.6/ctypes/__init__.py", line 361, in __getitem__ func = self._FuncPtr((name_or_ordinal, self)) AttributeError: /usr/local/lib64/python3.6/site-packages/rocketmq/librocketmq.so: undefined symbol: CreateOrderlyProducer 2. Please tell us about your environment: - CentOS 7 - python 3.7 - rocketmq-client-python 1.2.4 - rocketmq version 4.8.0 - rocketmq-client-cpp 2.0.0 -centos7-x86_64 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@rocketmq.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org