tod_stub detector running error

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Hi,

I encountered the following errors on running the tod_stub.

$ rosrun tod_stub detector -B t0001.bag

X Error of failed request: BadAccess (attempt to access private resource denied) Major opcode of failed request: 155 (GLX) Minor opcode of failed request: 26 (X_GLXMakeContextCurrent) Serial number of failed request: 72 Current serial number in output stream: 72

Any comment would be appreciated.

Thank you, Soonhac