----- Original Message ----- > From: "André Pang" <[email protected]> > To: [email protected] > Sent: Sunday, February 5, 2012 3:39:36 PM > Subject: [rust-dev] error: can't find crate for 'core' > > Hi! I'm trying out rust for the first time, and successfully > compiled and installed rustc. I hit this error attempting to > compile "hello world": > > > ~ % cat hello.rs > > use std; > > fn main(args: [str]) { > > std::io::println("hello world from '" + args[0] + "'!"); > > } > > ~ % rustc hello.rs > > hello.rs:1:0: 1:0 error: can't find crate for 'core' > > hello.rs:1 use std; > > ^
If you run again with "RUST_LOG=rustc::metadata::creader" you should get a bunch of information about where rustc is looking for the core crate. For example, when I compile something I see the following: ... rust: "inspecting file /home/banderson/Dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustc/x86_64-unknown-linux-gnu/lib/librustc.so" rust: "skipping /home/banderson/Dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustc/x86_64-unknown-linux-gnu/lib/librustc.so, doesn't look like libcore-*. so" rust: "inspecting file /home/banderson/Dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustc/x86_64-unknown-linux-gnu/lib/libcore-14bd852465126fe7-0.1.so" rust: "/home/banderson/Dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustc/x86_64-unknown-linux-gnu/lib/libcore-14bd852465126fe7-0.1.so is a candidate" rust: "matching 0 metadata requirements against 4 items" rust: "crate metadata:" rust: " name = "core"" rust: " vers = "0.1"" rust: " uuid = "c70c24a7-5551-4f73-8e37-380b11d80be8"" rust: " url = "http://rust-lang.org/src/core""; rust: "found /home/banderson/Dev/rust/build/x86_64-unknown-linux-gnu/stage1/lib/rustc/x86_64-unknown-linux-gnu/lib/libcore-14bd852465126fe7-0.1.so with matching metadata" On a 64-bit OS X system I would expect your rustc to find libcore at "../lib/rustc/x86_64-apple-darwin/lib/", with the path starting from the directory your rustc binary lives in. First I would check that you have a library called libcore-*-*.so living at that location and that rustc appears to be searching that location for crates. _______________________________________________ Rust-dev mailing list [email protected] https://mail.mozilla.org/listinfo/rust-dev
