Jim (izzydad2000) uploaded the file PA10M.zip. ?The description reads:
This is a correction to an earlier attempted upload. This zip file contains a schematic, a symbol for the PA10 amplifier, and the model (subckt) for the PA10M.
?The problem right away is that it is missing the symbol for the part "PA10M" which is on the schematic. ?That error message happens when opening the schematic file "PA10M coil amp.asc".
But there is a symbol named "PA10" that you included.
Renaming that symbol file to "PA10M" lets the schematic load without the error ... however, the symbol does not fit the schematic! ?The connections are all wrong (pins do not touch nets).
Please fix your schematic or your symbol so that they can be opened without error. ?If uncertain about what you have, make a brand new directory on your computer and unzip your ZIP file into it, and see if the schematic opens without error and that it looks right. ?If it seems right to you, then maybe you didn't follow the group's advice never to add models or symbols to LTspice's library area. ?If you did, then you need to include those too in your ZIP file.