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Gazebo fails to launch without sudo

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Hey everyone. I cannot make gazebo to run. If I print: gazebo the result is > Error [Param.cc:181] Unable to set> value [1,0471975511965976] for> key[horizontal_fov] Error> [Param.cc:181] Unable to set value> [0,100000001] for key[near] Qt has> caught an exception thrown from an> event handler. Throwing exceptions> from an event handler is not supported> in Qt. You must reimplement> QApplication::notify() and catch all> exceptions there. ... and the app crashes If I type sudo gazebo the app does not crash, but I still get > Error [Param.cc:181] Unable to set> value [1,0471975511965976] for> key[horizontal_fov] Error> [Param.cc:181] Unable to set value> [0,100000001] for key[near] Qt has> caught an exception thrown from an> event handler. Throwing exceptions> from an event handler is not supported> in Qt. You must reimplement> QApplication::notify() and catch all> exceptions there. I can't use use roslaunch with gazebo, because it crashes (same error as gazebo) and I cannot provide sudo to the roslaunch. Please help!!!

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