DNG Converter not recognizing CR2 files

hi, i'm frustrated. use canon eos rebel xs, , shoot in both raw , large. import images new photos app, , see both raw , jpg versions have uploaded, raw cannot edited , appears blank. , when try open raw version in photoshop cs5, message:

 

"could not complete request because file appears camera model not supported installed version of camera raw. please visit camera raw documentation additional information."

 

after searching internet, i've read need downloaded adobe dng converter fix issue. downloaded dng converter mac. now, when try convert cr2 files dng, message:

 

"the source folder not contain supported camera raw files."

 

i've been trying solve problem on own longest time, , give up. know issue is? feel i've exhausted of efforts @ point, , don't know do. never used have issue, believe went wrong when system updated or something. please offer suggestions if have them.

first, make sure dng converter id new enough handle raw files.  newer dngc 5.1 should fine.

 

once done, thing need doing differently single-click select foldername of folder raw files, don’t double-click open folder, otherwise you’ll message getting.

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