Size of 0 and thus the array would not be declared, hence the error. At the simulation start, the dataset would have a “recent_history” array was only declared and initialized when a dataset One scenario where this might happen is if you simultaneously declareĪnd initialize an array based on some condition. Note: You can tell Bonsai cannot query the first observation by the Pointer exception” when Bonsai attempts to index the array. Happens, it gets set to the Java keyword “null” and causes a “null Observation/state contains an array that was not initialized. This error shows up in the Bonsai UI during training. “State value received … is missing a value for var” Problem You may wish to waitĪ few minutes and try again. Otherwise, the problem may be a connection problem. Incorrect - error 403 you may see error 401 if your workspace ID is The second example was the result of the access key being The second line that the default “” was notĬhanged. Result of invalid characters being in the workspace ID – you can see in Your workspace ID and access key are correct. If the errors look like the ones shown above, check that Have some 4xx or 5xx error codes (as shown highlighted in the image Highlighted in yellow with the exception message highlighted in blue.Įrrors from Bonsai (in response to what was sent to it) will typically The image below shows the type of exception Check the AnyLogic console and see if there are anyĮrrors from the Connector will have lines typically starting with someįorm of “Exception”. Problem with AnyLogic not being able to register as a valid client to There are many reasons why this might occur typically it’s due to a In a locally hosted training (from within AnyLogic), the Bonsai platform is never “Connecting to Bonsai” loops indefinitely (locally hosted training) Problem Order to gain access to the Bonsai platform. This object is necessary when performing locally hosted training in SolutionĪdd the Bonsai Connector object to your model (availableĪs part of the Bonsai Connector Library). Trigger (i.e., a call to takeAction) but no Bonsai Connector object. This happens when your model has the RL experiment and an iteration “The model should define the learning agent interface. For more information, see the page on the RL Experiment. Iteration trigger (i.e., a call to `takeAction`) but no RL experiment. This happens when your model has the Bonsai Connector object and an This happens inside AnyLogic after attempting to start a locally hosted training. “The model should contain Reinforcement Learning Experiment defining Observation, Action, and other data - to be run with pretrained learning agent.” Problem SolutionĬonnector object is disabled before executing. CauseĪt this time, you can only perform locally-hosted RL training with a Simulation-type (i.e., animated, single-run) experiment. This happens inside AnyLogic when trying to execute a multi-run AnyLogic experiment with the Bonsai Connector enabled. “Error in the model during iteration ” Problem Traditional model (i.e., without any RL component), ensure the BonsaiĬonnector object is disabled before executing. If you are trying to execute an experiment with your Time, you can only perform RL training in a Simulation-type (i.e., In a headless mode with the Bonsai Connector object enabled. This happens inside AnyLogic when trying to run an AnyLogic experiment “This block works only with simulation experiments.” Problem The AnyLogic Console for uploaded training, check the logs (seeĬhecking Logs of Uploaded Simulation Models). That the stop mode is set to “Never” (as shown in the image below) The following are some suggestions:įor “finishSimulation” if results are found, ensure that theįunction is only called when not training a brainĬheck that the “Simulation run stop condition” is set to false and The simulation model tried to run past the limitations of theĮdition it was exported from (e.g., a pedestrian model exported fromĪnyLogic PLE tried to run for more than 1 hour)Įnsure that only the Inkling code will terminate the The RL experiment has the model time stopping at a certain time or The RL experiment’s field “Simulation run stop condition” has some Some common, episode-ending sources in a simulation model may include: When this occurs, it is typically because a terminal or episode-endingĬondition was triggered by the simulation, and not the Inkling code.Ĭurrently, Bonsai only supports terminal conditions being set from the This happens in the Bonsai UI and gets reported when an episode ends, containing this message. Edit me “Simulator halted execution before the episode was complete” Problem
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