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.
Hi thanks for your answer.
anyway I have been installing webmethods CommandCentral which also have cc
and after I'm uninstall this command central, everything going back work.
Thank you so much 
