Error: Can't read or find LMF file In QuartusII 8.0

[Altera_Forum]

Hello everyone .I have trouble in programming vhdl files in QuartusII 8.0 .A vhdl file can be used in old project,but cannot run correctly in the newly built project. The error message is"Error: Can't read or find LMF file DeConstellation/DeConstellation.vhd".But the DeConstellation/DeConstellation.vhd files are in the former project,which has nothing relationship with this newly built project. I have compared my LMF file folder with my paterner,and I have found nothing different.And I am confused by this case.I repared my QuartusII 8.0,but no result came out.Who can help me ?Thank you in advance.

[Altera_Forum]

I find the answer myself,but I donot know the reasons for which it occurs and the fuction lmf acts.The solution is to set ''liabrary mapping file'' in the setting options into ../../lmf/maxplus2.lmf. It made my work done.But I donot konw the real reason.Because the lmf file was replaced by DeConstellation/Constellation.vhd automatically when the project including DeConstellation/Constellation.vhd files ran. 

Anyone who know the answer can write down your tips ,thank you very much.

[Altera_Forum]

--- Quote Start ---  I find the answer myself,but I donot know the reasons for which it occurs and the fuction lmf acts.The solution is to set ''liabrary mapping file'' in the setting options into ../../lmf/maxplus2.lmf. It made my work done.But I donot konw the real reason.Because the lmf file was replaced by DeConstellation/Constellation.vhd automatically when the project including DeConstellation/Constellation.vhd files ran. Anyone who know the answer can write down your tips ,thank you very much.  --- Quote End ---    Hi,  is the DeConstellation/Constellation.vhd a HDL description or some kind of "gatelevel" ?  Kind regards  GPK

[Altera_Forum]

hi GPK 

DeConstellation/Constellation.vhd is HDL about OFDM ,Which is the hot topic in 4G mobile commucation.DeConstellation/Constellation are both important in commucation,First it can make data regularly, Second it brings in the image part and can be dealed with FFT . Best wishes to you. zhf019