Grib in OpenCPN5.2.4 working abnormally

[xiurong]

Dear sailors
when I use grib in opencpn to query some grib file ,I received the mail says wrong command line,pls see attached photo. any one can give a solution?

[rgleason]

The request parameters look ok to me, but it is not complete.
Upload here the complete request from your email.
You need all the parameters, two locations, the resolution, etc.

Read the manual. Rtfm.