cannot load an activity on forerunner 935

Try a manual upload from your Garmin device to Garmin Connect Web - How Do I Manually Upload an Activity I Recorded to Garmin Connect?

If you get any message other than Import Complete, then there is a problem with the file. Attach it to this thread. We can take a look to see if it is repairable.

• Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
• Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.

sorry. I forgot to mention that I manually connected the watch to the laptop and couldnt find the file 

Thanks for your reply.  tried the manual upload again and I found a file which is from the correct date which may be the one. however, I recieved an error message that the file type is not supported

this is the file name F5KH5350.FIT 

Sorry but there is no attached file

seilogramp said:

• Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
• Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.

"D:\GARMIN\ACTIVITY\F5KH5350.FIT"

hope this works now 

"C:\Users\Udi David Stern\OneDrive - N-DRIP Ltd\Desktop\Personal\F5KH5350.FIT"

No. it appears you're just entering the name of the file rather than actually attaching it.

Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> double click on the file  >> OK. Or simply drag the file onto the body of your post

If still problematic you can send me a private message. Hover your mouse over my name, then select "send private message" Then we can exchange email addresses.

[solved]