repetier 0.51 not printing from SD card

I'm using repetier 0.51 with marlin 1.0.0 RC2 on a Prusa.
I try to run my file on the SD card and I get

< 2:44:37 PM: Begin file list
< 2:44:37 PM: /TRASHE~1/501/BOBBIN~1.GCO
< 2:44:37 PM: BOBBIN~2.GCO
< 2:44:37 PM: End file list
< 2:44:40 PM: File opened:bobbin~2.gco Size:634061
< 2:44:40 PM: File selected
< 2:44:41 PM: echo:Unknown command:"57"
< 2:44:41 PM: echo:Unknown command:"53"

What am I doing wrong? Thanks!

First, the arduino sd library only supports filenames with max. 8 chars+ 3 chars for the extensions. The ~ shows you wrote the file on your computer with longer names. That can result in problems later when you delete files directly on the arduino. It is bette rto only use short filenames.

This is not your problem though. From your log I see you started the execution and the errors come from marlin. My guess is they are caused by the content of the file, so I think the problem is inside the file. You should check the file for wrong G-codes. If you wrote the file with the host it may also be possible that you selected the binary format, which is not supported by Marlin. In this case make sure to use the ascii format when exporting the code.

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