Hello I'm new in rust, a few month ago I was learning rust and everything it's fine when I compiling rust file but after few weeks I want to continues my learning I'm getting error when compiling file rust.
I'm using ubuntu 20.04
rust version : rustc 1.71.0 (8ede3aae2 2023-07-12)
have installed gcc and build-essential
the error appear when compiling like this:
The error is telling you that you're missing a linker, which is a required component of building Rust code.
It's been a little while since I've used ubuntu, but try installing the gcc package (which contains a linker IIRC) with sudo apt get install gcc and then rebuilding your Rust project.
I have been installing gcc anyway
cc is a CLI program, one can just try to run it to find out whether it's installed:
$ which cc
/usr/bin/cc
$ cc
cc: fatal error: no input files
compilation terminated.
Well, "Invalid params" isn't exactly a helpful message. Perhaps you get better hints when running more verbosely:
rustc -v file.rs
# or
rustc -g file.rs
And of course it's always a good idea to update packages when things don't work as expected:
sudo apt-get update
sudo apt-get upgrade
rustc -v doesn’t add much to the linker call. For more about linking, you need to enable extra logging:
RUSTC_LOG=rustc_codegen_ssa::back::link=info rustc file.rs
That brings up a question: why is OP calling rustc directly, rather than cargo? For a beginner, or Indeed anyone who needs help building a project, this is almost certainly the wrong thing to do. Rust is not C, and rustc is not gcc or llvm.
The better way to proceed is to create a cargo project, eg:
cargo new --lib my-project
cd my-project
Then navigate to `my-project/src/lib.rs, add the code there, and execute at a bash/cmd/PS prompt:
cargo build
good gwief! your PATH is all fsck up.
if you can't bring back your original environment try another username with access to development tools.
