Hi,
I was trying to reproduce this example: https://www.nengo.ai/nengo-loihi/examples/lmu.html on the INRC cloud VM with 0.9 nxsdk. But encountered this problem in the last step. Any ideas on how to solve it? Here is the stack trace:
BuildError Traceback (most recent call last)
in
1 model = nengo_loihi.builder.Model(dt=dt)
2 model.pes_error_scale = 200.0
----> 3 with nengo_loihi.Simulator(net, model=model) as sim:
4 sim.run(sim_t)
5
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/simulator.py in init(self, network, dt, seed, model, precompute, target, progress_bar, remove_passthrough, hardware_options)
143
144 # Build the network into the model
–> 145 self.model.build(network)
146
147 # Build the extra passthrough connections into the model
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/builder/builder.py in build(self, obj, *args, **kwargs)
206 model.seeded[obj] = self.seeded[obj]
207
–> 208 built = model.builder.build(model, obj, *args, **kwargs)
209 if self.build_callback is not None:
210 self.build_callback(obj)
~/nxsdk09/lib/python3.5/site-packages/nengo/builder/builder.py in build(cls, model, obj, *args, **kwargs)
237 for obj_cls in type(obj).mro:
238 if obj_cls in cls.builders:
–> 239 return cls.builders[obj_cls](model, obj, *args, **kwargs)
240
241 raise BuildError(“Cannot build object of type %r” % type(obj).name)
~/nxsdk09/lib/python3.5/site-packages/nengo/builder/network.py in build_network(model, network, progress)
80 logger.debug(“Network step 2: Building subnetworks”)
81 for subnetwork in network.networks:
—> 82 model.build(subnetwork)
83
84 logger.debug(“Network step 3: Building connections”)
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/builder/builder.py in build(self, obj, *args, **kwargs)
206 model.seeded[obj] = self.seeded[obj]
207
–> 208 built = model.builder.build(model, obj, *args, **kwargs)
209 if self.build_callback is not None:
210 self.build_callback(obj)
~/nxsdk09/lib/python3.5/site-packages/nengo/builder/builder.py in build(cls, model, obj, *args, **kwargs)
237 for obj_cls in type(obj).mro:
238 if obj_cls in cls.builders:
–> 239 return cls.builders[obj_cls](model, obj, *args, **kwargs)
240
241 raise BuildError(“Cannot build object of type %r” % type(obj).name)
~/nxsdk09/lib/python3.5/site-packages/nengo/builder/network.py in build_network(model, network, progress)
92 # TODO: Except perhaps if the connection being learned
93 # is in a subnetwork?
—> 94 model.build(conn)
95
96 logger.debug(“Network step 4: Building probes”)
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/builder/builder.py in build(self, obj, *args, **kwargs)
206 model.seeded[obj] = self.seeded[obj]
207
–> 208 built = model.builder.build(model, obj, *args, **kwargs)
209 if self.build_callback is not None:
210 self.build_callback(obj)
~/nxsdk09/lib/python3.5/site-packages/nengo/builder/builder.py in build(cls, model, obj, *args, **kwargs)
237 for obj_cls in type(obj).mro:
238 if obj_cls in cls.builders:
–> 239 return cls.builders[obj_cls](model, obj, *args, **kwargs)
240
241 raise BuildError(“Cannot build object of type %r” % type(obj).name)
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/builder/connection.py in build_connection(model, conn)
63 build_host_neurons_to_chip(model, conn)
64 else:
—> 65 build_host_to_chip(model, conn)
66
67 elif pre_onchip and not post_onchip:
~/nxsdk09/lib/python3.5/site-packages/nengo_loihi/builder/connection.py in build_host_to_chip(model, conn)
137 raise BuildError(
138 "nengo-loihi does not yet support %r transforms "
–> 139 “on host to chip connections” % (type(conn.transform).name,)
140 )
141
BuildError: nengo-loihi does not yet support ‘NoTransform’ transforms on host to chip connections
Thanks!