Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
error[E0432]: unresolved import `apple_flat_package`
  --> src/files.rs:26:5
   |
26 | use apple_flat_package::PkgReader;
   |     ^^^^^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `apple_flat_package`
   |
   = help: if you wanted to use a crate named `apple_flat_package`, use `cargo add apple_flat_package` to add it to your `Cargo.toml`
During compilation there was attempt to import apple_flat_package which isn't present on the device