在 pkg-config 搜索路径中找不到软件包 alsa。也许你应该添加包含“alsa.pc”的目录

Question

我在使用 bevy 框架时遇到问题。

抱歉，我是这个网站的新手，我不知道如何使我的问题更“可读”，当我尝试运行时完整退出代码：cargo run --example hello_world

• 我尝试定位alsa.pc->不返回任何内容。
• 一些代码位于同一行，因为我不知道如何在此处断行“\n”：c

#########################################################################################

   Compiling alsa-sys v0.3.1 
   Compiling libudev-sys v0.1.4
error: failed to run custom build command for `alsa-sys v0.3.1`

Caused by:
  process didn't exit successfully: `/root/plib/Download/bevy/target/debug/build/alsa-sys-15ce9f331cc5c6c6/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-env-changed=ALSA_NO_PKG_CONFIG
  cargo:rerun-if-env-changed=PKG_CONFIG_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG
  cargo:rerun-if-env-changed=PKG_CONFIG
  cargo:rerun-if-env-changed=ALSA_STATIC
  cargo:rerun-if-env-changed=ALSA_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_STATIC
  cargo:rerun-if-env-changed=PKG_CONFIG_ALL_DYNAMIC
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_PATH
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_LIBDIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64-unknown-linux-gnu
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR_x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=HOST_PKG_CONFIG_SYSROOT_DIR
  cargo:rerun-if-env-changed=PKG_CONFIG_SYSROOT_DIR

  --- stderr
  thread 'main' panicked at '`"pkg-config" "--libs" "--cflags" "alsa"` did not exit successfully: exit status: 1
  error: could not find system library 'alsa' required by the 'alsa-sys' crate

  --- stderr
  Package alsa was not found in the pkg-config search path.
  Perhaps you should add the directory containing `alsa.pc'
  to the PKG_CONFIG_PATH environment variable
  No package 'alsa' found
  ', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/alsa-sys-0.3.1/build.rs:13:18
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
error: build failed
#########################################################################################

Answer 1

要获得所需的alsa.pc文件，您必须找到相应的包 ，然后通过以下方式安装它

sudo apt-get update
sudo apt-get install libasound2-dev

并且

sudo apt-get install libudev-dev

然后重试。

如果不确定该怎么做，请关注https://bevyengine.org/learn/book/getting-started/ 。