handle error without callback
handle error without callback

masato/meshblu-dev,Qbitus/meshblu,osokay/IotServerCore,dommert/meshblu,masato/meshblu,masato/meshblu,atyenoria/meshblu,octoblu/meshblu,osokay/IotServerCore,jaambee/meshblu,ChemTics/meshblu,masato/meshblu,masato/meshblu-dev,Qbitus/meshblu,Qbitus/meshblu,ChemTics/meshblu,ChemTics/meshblu,jaambee/meshblu,dommert/meshblu,atyenoria/meshblu,dommert/meshblu,osokay/IotServerCore,jaambee/meshblu,masato/meshblu-dev,octoblu/meshblu,atyenoria/meshblu