Error in Quartus II

Hello,

you compile it to the library work by including it to the list of project files. Quartus Compilation Report:Analysis & Synthesis:Source Files Read should include the file containing the package definition. If you didn't specify an differing library name under file properties or through an Altera synthesis attribute, anything goes to the library work.

If use work.mc8051_p.all gives the said error, either a package mc8051_p isn't defined in the source file or the file isn't in the project.

Regards,

Frank