使用anchor build构建Solana项目时遇librustc_driver加载失败错误

错误信息 #

执行anchor build构建Solana项目时，出现以下错误：

error: process didn't exit successfully: `rustc -vV` (signal: 6, SIGABRT: process abort signal)
--- stderr
dyld: Library not loaded: @rpath/librustc_driver-c9ef59bea954d042.dylib
  Referenced from: /Users/zoro/.rustup/toolchains/solana/bin/rustc
  Reason: no suitable image found.  Did find:
    /Users/zoro/.cache/solana/v1.37/platform-tools/rust/bin/../lib/librustc_driver-c9ef59bea954d042.dylib: cannot load 'librustc_driver-c9ef59bea954d042.dylib' (load command 0x80000034 is unknown)
    /Users/zoro/.cache/solana/v1.37/platform-tools/rust/bin/../lib/librustc_driver-c9ef59bea954d042.dylib: stat() failed with errno=1
    /Users/zoro/.rustup/toolchains/solana/lib/librustc_driver-c9ef59bea954d042.dylib: cannot load 'librustc_driver-c9ef59bea954d042.dylib' (load command 0x80000034 is unknown)
    /Users/zoro/.rustup/toolchains/solana/lib/librustc_driver-c9ef59bea954d042.dylib: stat() failed with errno=1

已尝试无效方案 #

• 执行rm -rf ~/.cache/solana/*清理Solana缓存后重新构建，问题依旧。

可行解决方案 #

该错误是由于Solana专用Rust工具链的动态库包含当前系统不支持的加载命令导致，可通过以下步骤修复：

1. 移除损坏的Solana工具链：

   rustup toolchain remove solana
   

2. 重新安装对应版本的Solana工具链（匹配项目使用的v1.37.0版本）：

   solana-install init 1.37.0
   

3. 清理Cargo缓存，避免依赖残留：

   rm -rf ~/.cargo/registry ~/.cargo/git
   

4. 再次执行构建命令：

   anchor build
   

内容的提问来源于stack exchange，提问作者Zoro