Check Failed:registry.count (type) = = 1 (0 vs. 1) Unknown layer Type:python__python

The following error often occurs when using the Caffe Python layer:

Check Failed:registry.count (type) = = 1 (0 vs. 1) Unknown layer Type:python
The reason for this is that the support for Python is not turned on, and you need to open the following switch in the makefile.conf file:

With_python_layer=1 
then makes
&&
make Pycaffe This can be supported

but there is an error after this modification. The
CD $PYTHONPATH
entered this path and found that the new environment variable configuration did not take effect ...
If you want it to take effect immediately, you need to execute the following command:
source ~/.BASHRC

Then the problem was solved.