Error 12007.

I have been on this error for quite a while now, I have read all the other threads but i haven't seen a way to solve this issue.

The code is attached.

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Info: *******************************************************************

Info: Running Quartus Prime Analysis & Synthesis

Info: Version 15.1.0 Build 185 10/21/2015 SJ Lite Edition

Info: Processing started: Fri May 27 14:20:43 2016

Info: Command: quartus_map --read_settings_files=on --write_settings_files=off procpld -c procpldtop

Info (20030): Parallel compilation is enabled and will use 2 of the 2 processors detected

Error (12007): Top-level design entity "procpldtop" is undefined

Error: Quartus Prime Analysis & Synthesis was unsuccessful. 1 error, 0 warnings

Error: Peak virtual memory: 739 megabytes

Error: Processing ended: Fri May 27 14:20:57 2016

Error: Elapsed time: 00:00:14

Error: Total CPU time (on all processors): 00:00:23

Error (293001): Quartus Prime Full Compilation was unsuccessful. 3 errors, 0 warnings

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Thanks.