If simulation isn’t needed, the symbol-only library is fine for PCB layout.
You search for TLP250, but nothing appears. Cause: The library files were not copied to the correct folder, or Proteus was not restarted. Solution: Double-check the library folder path (especially if you have a newer Proteus version). Ensure you copied both the .LIB and .IDX files. Restart Proteus again. tlp250 proteus library download best