we have upgraded sdl tridion 2013 hr1 to sdl web 8 and installed successfully.However  we are facing below error in google console[enter image description here][1] when we are creating new component or opening existing component. Uncaught SyntaxError: Unexpected token < in item.aspx?tcm=16:1      [1[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/wUXG5.png