Linker error msp430ezrf2500

Did you use any interrupt in your ED code ? That might getting conflict with this .
I had same issue while P2IE so I used P1IE and it works fine

Dear Swapnil, 

I could solve the error. Actually, two functions had same names and that was where it was throwing an error. Can I ask you for some further help?

will be happy to help ................

I am trying to control the ED with the computer keyboard using Putty software. I have to glow the LEDs of ED in the end. Any piece of code that I can use? I tried using SMPL_Send function, but my it doesn't help. Do you have an idea about this? :D

I dont think any issue in that .I am controlling my multiple ED through cloud using simpliciTI.
As I can see you are using sensor demo .It that SMPL_send is used by both AP and ED you can go through same .Check status of SMPL_send use cases according reply from SMPL_send .For EX if you get reply as SMPL_NOMEM clear memory and like that in case of SMPL_TX_CCA_FAIL you can try to send it again after some delay .I prefer to reset connection in that case