Notice the second:? /ubitx_v4.3_code.ino The rest of the 7 files must be there.? If that is done then.... we manually copy|paste the rest to that directory.
What the error message translates to is: Hey I need this and its not where I need to look! To solve that copy the rest there and try opening the IDE again.? If all is well you see 7 files in tabs.??