after updating and build (all) I get the following with cle-start
Type 'nest.help()' to find out more about NEST. CSAConnector: libneurosim support not available in NEST. Falling back on PyNN's default CSAConnector. Please re-compile NEST using --with-libneurosim=PATH /home/akshay/.opt/platform_venv/lib/python2.7/site-packages/pyNN/nest/__init__.py:54: UserWarning: Unable to install NEST extensions. Certain models may not be available. Further details: DynamicModuleManagementError in Install: Module 'pynn_extensions' could not be opened. The dynamic loader returned the following error: 'file not found'.
somehow nest should be compiled with libneurosim right?