Appian RPA Robot ArrayIndexOutOfBoundException while opening a robot

Certified Senior Developer

I have created a new robot in Operations Console and the robot is "Online". When I am trying to open this robot, it is throwing error as "ArrayIndexOutOfBoundException". And the Robotic task also cannot execute and says "Robot_Not_Allowed". Why this is happening?

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    Certified Lead Developer
    in reply to Mayuri Mestry

    If you've already matched the permission tags on the Robot, Robot Pool, and Robotic Task, the issue may be due to the robot not being explicitly added to the Robot Pool, or the Robotic Task not linked properly to that pool.
    Also, ensure the service account running the robot has the required permissions and is part of the correct user group. Matching tags alone aren’t enough - the robot must be assigned to the pool, and the task must target that pool.
    Try removing and re-adding the robot to the pool, and reassociating the task.