Let’s take a look at how to fix the “ can’t find Rust compiler” Ubuntu error. Our Server Management Support team is here to help you with your questions and concerns.

How to Fix Ubuntu Error: Can’t Find Rust Compiler

If you have been running into the error “error: can’t find Rust compiler” in Ubuntu, you have come to the right place.

According to our experts, this error occurs because the system cannot locate the Rust compiler. Rust compiler is a handy tool for building programs written in the Rust programming language. Let’s explore the common causes of this issue and their solutions.

So, today, let’s sit down and resolve “error: can’t find Rust compiler”.

Common Causes and Solutions

• Rust Not Installed

  A common cause behind this error is that the Rust compiler is not installed on your system.

  Fix: So, install Rust using `rustup`. It helps manage Rust installations.

  curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

  Then, follow the on-screen instructions to complete the installation. After installation, make sure the Rust binaries are present in the PATH.
• Rust Not in PATH

  If the Rust compiler (rustc) is installed but not in your system’s PATH, we will get the error message.

  Fix: Make sure the Rust binary directory is present in the PATH environment variable. We can do this by adding the following line to the `.bashrc` or `.zshrc` file (depending on the shell):

  export PATH="$HOME/.cargo/bin:$PATH"

  Then, reload the shell configuration:

  source ~/.bashrc # or source ~/.zshrc

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• Incorrect Installation

  Sometimes, the installation of Rust might be incomplete or corrupted.

  Fix: So, reinstall Rust using `rustup` to ensure a clean installation.

  rustup self uninstall
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

• Specific Toolchain Not Installed

  If we are working on a project that requires a specific toolchain or version of Rust, it may not be installed.

  Fix: Use `rustup` to install the toolchain.

  rustup install stable
rustup default stable
• IDE Configuration

  If we are using an Integrated Development Environment (IDE) like VSCode, it may not be correctly configured to use the Rust compiler.

  Fix: So, make sure that the IDE is configured to use the correct path to the Rust compiler. For VSCode, we have to install the Rust extension and configure the `rust-client.rustupPath` setting.

Troubleshooting Tips

• First, verify if Rust is installed by running:

  rustc --version
cargo –version
• Then, make sure that the Rust binary directory is in the PATH:

  echo $PATH
• Next, check if Rust is present or needs reinstallation, use `rustup`:

  curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
• Then, make sure the latest version of Rust installed:

  rustup update
• Finally, make sure that IDE is properly configured to use the Rust toolchain.

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Conclusion

With these steps, you can resolve the “can’t find Rust compiler” error and get back to developing with Rust smoothly.

In brief, our Support Experts demonstrated how to fix the “ can’t find Rust compiler” error.