Solana Anchor Build Issue
The Solana anchor build process has encountered an error that is preventing the installation of the latest version of the Solana program package. The error message indicates a compatibility issue with Rust, the language used to build and compile the Solana program.
Error Message:
error: package solana-program v2.1.10 cannot be built because it
requires rustc 1.79.0 or newer, while the target is stable-nightly-2023
Issue Explanation:
The error message indicates that the Solana program package (solana-program) requires Rust version 1.79.0 or later to build, but the target configuration used in the anchor build process uses an older version of Rust (1.78.x).
To resolve this issue, we need to update the Rust version used in the anchor build process to match the required version (1.79.x). Here’s a step-by-step guide to fix the issue:
Step 1: Update Rust Version
Update the Rust version used in the Solana program package to 1.79.x:
rustup update --default-version stable-nightly
This command updates the default Rust version to the latest stable nightly version.
Step 2: Rebuild Solana Program Package
Rebuild the Solana program package using the updated Rust version:
cargo build --target wasm32-unknown-unknown --release
This command builds the Solana program package using the updated Rust version and targets the wasm32-unknown-unknown configuration, which is compatible with the anchor build process.
Step 3: Run Anchor Build
Run the anchor build command again to install the rebuilt Solana program package:
anchor build --target wasm32-unknown-unknown
This command builds the Solana program package using the updated Rust version and targets the wasm32-unknown-unknown configuration, which is compatible with the anchor build process.
After Running Anchor Build:
Once the anchor build process completes successfully, you should be able to run the Solana program package without encountering any issues:
cargo run --no-run
This command runs the Solana program package using Rust and should work as expected.
Troubleshooting Tips:
- Make sure that the Rust version used in the anchor build process is updated to 1.79.x or later.
- Check if there are any dependencies or errors reported by the Solana program package before rebuilding it.
- If the issue persists after updating Rust and rebuilding the Solana program package, try clearing the cache and building the program again from the anchor command line:
anchor build --clear-cache
Bottom line:
The Solana anchor build process has encountered an error that required updating the Rust version used in the Solana program package to 1.79.x or later. By following the steps outlined above, you should be able to resolve the issue and successfully install the rebuilt Solana program package.