bzr cedet compiling error on Ubuntu

[eenliu]

Hi,

I tried to byte-compile bzr cedet on Ubuntu 14.04, but got this error:

In toplevel form:
cedet-edebug.el:37:13:Error: File 
`/usr/share/emacs/24.3/lisp/emacs-lisp/debug.elc' was not compiled in Emacs
make[2]: *** [cedet-edebug.elc] Error 1
make[2]: Leaving directory `/home/ning/dev/emacs.d/site-lisp/cedet/lisp/cedet'
make[1]: *** [cedet] Error 2
make[1]: Leaving directory `/home/ning/dev/emacs.d/site-lisp/cedet/lisp'
make: *** [compile] Error 2


Similarly, if compiling contrib:

In semantic-tag-folding-get-attribute-overlay:
semantic-tag-folding.el:533:42:Warning: function `remove-if-not' from cl
    package called at runtime
semantic-tag-folding.el:666:1:Error: File 
`/usr/share/emacs/24.3/lisp/emacs-lisp/cl-seq.elc' was not compiled in Emacs
make: *** [semantic-tag-folding.elc] Error 1


Can someone tell me what this "***.elc was not compiled in Emacs" error means? 
How can I solve the issue? Thanks.