[quote user="Mohamed Fawzy"]unresolved symbol taskFxn, first referenced in C:\Users\M.Fawzy\workspace_v5_4\1\labs\Debug\configPkg\package\cfg\app_pem4f.oem4f[/quote]
That is saying the function taskFxn gets called from app_pem4f.c, but there is no definition of taskFxn.
[quote user="Mohamed Fawzy"]#10229-D output section ".data" refers to load symbol "taskFxn" and hence cannot be compressed; compression "rle" is ignored[/quote]
This situation is discussed in this thread.
All that said, it is likely that both these errors are caused by a configuration error of some sort. What software package are you using?
Thanks and regards,
-George