There is a successfully working project on one PC, copied it entirely on the second, after re-import received 328 errors. Delete the Library folder, re-import again, again 328 errors.

All errors are solely such

The type or namespace "x" could not be found. Are you missing an assembly reference? The type or namespace "x" could not be found. Are you missing "y" using directive?

x and y are very different. The project is naturally not compiled.

Unity 5.6 There are those who came across this?

  • one
    Settings of the Profile framework project need to be looked at in order to match ... maybe because of this ..... go to VS and set the same as the other - Alexey Shimansky
  • Try copying only the Assets and ProjectSettings folders - KingPeas
  • 2
    The Library folder does not affect this type of error. You most likely have a dll plugin (or several) that turned off during the transfer, from here it doesn’t see the namespace, Unity can see the plugin again, it needs to be transferred to the Plugins folder, click ReImport, and then you can transfer it back to any folder, well, or leave right. - Xumera_hZ

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