python extension error

Miaojia Lu

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Mar 22, 2021, 3:19:16 PM3/22/21

to netlogo-users

Hi all,

Here is the error when I run the traffic basic reinforcement learning model:

Extension exception: module 'keras.optimizers' has no attribute 'adam'

error while observer running PY:RUN

called by procedure SETUP

called by procedure SETUP-TF

called by Button 'setup-tf'

org.nlogo.nvm.WrappedExtensionException: Extension exception: module 'keras.optimizers' has no attribute 'adam'

at org.nlogo.prim._extern.perform(_extern.java:40)

at org.nlogo.nvm.Context.stepConcurrent(Context.java:107)

at org.nlogo.nvm.ConcurrentJob.step(ConcurrentJob.scala:65)

at org.nlogo.job.JobThread.runPrimaryJobs(JobThread.scala:133)

at org.nlogo.job.JobThread.$anonfun$run$1(JobThread.scala:68)

at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)

at scala.util.control.Exception$Catch.apply(Exception.scala:228)

at org.nlogo.api.Exceptions$.handling(Exceptions.scala:41)

at org.nlogo.job.JobThread.run(JobThread.scala:66)

Caused by: org.nlogo.api.ExtensionException: module 'keras.optimizers' has no attribute 'adam'

at org.nlogo.extensions.py.PythonSubprocess.pythonException(PythonExtension.scala:389)

at org.nlogo.extensions.py.PythonSubprocess.run(PythonExtension.scala:343)

at org.nlogo.extensions.py.PythonSubprocess.$anonfun$exec$2(PythonExtension.scala:373)

at org.nlogo.extensions.py.PythonSubprocess.$anonfun$async$1(PythonExtension.scala:314)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.Exception: Traceback (most recent call last):

File "G:\Netlogo\app\extensions\.bundled\py\pyext.py", line 143, in logo_responder

exec(code, globs)

File "<string>", line 6, in <module>

AttributeError: module 'keras.optimizers' has no attribute 'adam'

... 7 more

NetLogo 6.2.0

main: org.nlogo.app.AppFrame

thread: JobThread

OpenJDK 64-Bit Server VM 1.8.0_275 (BellSoft; 1.8.0_275-b01)

operating system: Windows 10 10.0 (amd64 processor)

Scala version 2.12.12

JOGL: (3D View not initialized)

OpenGL Graphics: (3D View not initialized)

model: Traffic Basic - Reinforcement

05:13:59.328 RuntimeErrorEvent (org.nlogo.app.App$$anon$4 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0

05:13:59.324 InterfaceGlobalEvent (org.nlogo.app.interfacetab.InterfacePanel$$anon$1 (org.nlogo.window.SliderWidget)) AWT-EventQueue-0

05:13:59.324 InterfaceGlobalEvent (org.nlogo.widget.SwitchWidget) AWT-EventQueue-0

05:13:59.324 InterfaceGlobalEvent (org.nlogo.app.interfacetab.InterfacePanel$$anon$1 (org.nlogo.window.SliderWidget)) AWT-EventQueue-0

I have installed TensorFlow and Keras successfully.
I don't know how to fix the problem?

The model can be downloaded by this link:

https://github.com/qiemem/PythonExtension/blob/master/demos/Traffic%20Basic%20-%20Reinforcement.nlogo

Thank you for your kind help.

Bests,

Emily

Michael Tamillow

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Mar 22, 2021, 11:01:14 PM3/22/21

to Miaojia Lu, netlogo-users

Try to capitalize "adam" (i.e. "Adam")

https://keras.io/api/optimizers/adam/

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Miaojia Lu

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Mar 23, 2021, 2:34:24 PM3/23/21

to netlogo-users

It works!

Thank you very much!

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