ERROR = Uncaught TypeError: Cannot read property 'upgradable webapi applist' of null at webapis.js:19725

Hi Community,

I’ve a problem, when i try to debug an older version of apps i.e. projectname_5.5, on TV it works fine but try to debug on emulator then i get a error (webapis.js:19725)
while attached a snapshot of error. Please help me.

tizen version - 4.6