How do I convert 2.8x scenes to 2.7x ones?

I am a researcher that has been coding on Python + Blender 2.78. I downloaded several 2.8x scenes from the web and want to render them with my scripts. I’m getting this error:

RuntimeError: Error: File written by newer Blender binary (280.0), expect loss of data!

Error, region type 12 missing in - name:"View3D", id:1
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 12 missing in - name:"Image", id:6
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 12 missing in - name:"Image", id:6
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 11 missing in - name:"Text", id:9
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 9 missing in - name:"Buttons", id:4
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 11 missing in - name:"Text", id:9
Error, region type 12 missing in - name:"Image", id:6
Error, region type 12 missing in - name:"View3D", id:1
Error, region type 12 missing in - name:"Sequencer", id:8
Error, region type 5 missing in - name:"Sequencer", id:8
Error, region type 12 missing in - name:"Sequencer", id:8
Error, region type 5 missing in - name:"Sequencer", id:8

I understand there might not be "perfect conversion" that covers everything, but I still hope for automatic conversion that does a reasonable job.