Dify安装插件报错如何处理

查看报错日志

docker logs -f docker-plugin_daemon-1

报错日志如下

2025/11/26 09:30:01 full_duplex.go:59: [INFO]init environment for plugin bowenliang123/md_exporter:2.1.0
2025/11/26 09:30:02 full_duplex.go:65: [ERROR]init environment failed: failed to install dependencies: exit status 1, output: Resolved 82 packages in 25ms
   Building pycairo==1.29.0
  × Failed to build `pycairo==1.29.0`
  ├─▶ The build backend returned an error
  ╰─▶ Call to `mesonpy.build_wheel` failed (exit status: 1)

      [stdout]
      + meson setup
      /root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src
      /root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src/.mesonpy-ykyowt_t
      -Dbuildtype=release -Db_ndebug=if-release
      -Db_vscrt=md -Dwheel=true -Dtests=false
      --native-file=/root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src/.mesonpy-ykyowt_t/meson-python-native-file.ini
      The Meson build system
      Version: 1.9.1
      Source dir:
      /root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src
      Build dir:
      /root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src/.mesonpy-ykyowt_t
      Build type: native build
      Project name: pycairo
      Project version: 1.29.0
      C compiler for the host machine: cc (gcc 13.3.0 "cc (Ubuntu
      13.3.0-6ubuntu2~24.04) 13.3.0")
      C linker for the host machine: cc ld.bfd 2.42
      Host machine cpu family: x86_64
      Host machine cpu: x86_64
      Program python3 found: YES
      (/root/.cache/uv/builds-v0/.tmpTyOatz/bin/python)
      Compiler for C supports arguments -Wall: YES
      Compiler for C supports arguments -Warray-bounds: YES
      Compiler for C supports arguments -Wcast-align: YES
      Compiler for C supports arguments -Wconversion: YES
      Compiler for C supports arguments -Wextra: YES
      Compiler for C supports arguments -Wformat=2: YES
      Compiler for C supports arguments -Wformat-nonliteral: YES
      Compiler for C supports arguments -Wformat-security: YES
      Compiler for C supports arguments -Wimplicit-function-declaration: YES
      Compiler for C supports arguments -Winit-self: YES
      Compiler for C supports arguments -Wmissing-format-attribute: YES
      Compiler for C supports arguments -Wmissing-noreturn: YES
      Compiler for C supports arguments -Wnested-externs: YES
      Compiler for C supports arguments -Wold-style-definition: YES
      Compiler for C supports arguments -Wpacked: YES
      Compiler for C supports arguments -Wpointer-arith: YES
      Compiler for C supports arguments -Wreturn-type: YES
      Compiler for C supports arguments -Wshadow: YES
      Compiler for C supports arguments -Wsign-compare: YES
      Compiler for C supports arguments -Wstrict-aliasing: YES
      Compiler for C supports arguments -Wundef: YES
      Compiler for C supports arguments -Wunused-but-set-variable: YES
      Compiler for C supports arguments -Wswitch-default: YES
      Compiler for C supports arguments -Wno-missing-field-initializers: YES
      Compiler for C supports arguments -Wno-unused-parameter: YES
      Compiler for C supports arguments -fno-strict-aliasing: YES
      Compiler for C supports arguments -fvisibility=hidden: YES
      Did not find pkg-config by name 'pkg-config'
      Found pkg-config: NO
      Did not find CMake 'cmake'
      Found CMake: NO
      Run-time dependency cairo found: NO

      ../cairo/meson.build:31:12: ERROR: Dependency lookup for cairo with
      method 'pkgconfig' failed: Pkg-config for machine host machine not
      found. Giving up.

      A full log can be found at
      /root/.cache/uv/sdists-v9/index/46901b1a4cb2cba0/pycairo/1.29.0/yfqQiA982PUk2EuihPGto/src/.mesonpy-ykyowt_t/meson-logs/meson-log.txt

      hint: This usually indicates a problem with the package or the build
      environment.
  help: `pycairo` (v1.29.0) was included because `xhtml2pdf` (v0.2.17) depends
        on `svglib` (v1.6.0) which depends on `rlpycairo` (v0.4.0) which
        depends on `pycairo`
, retrying

很明显，报错原因是缺失依赖

# 进入正在运行的插件守护进程容器
docker exec -it docker-plugin_daemon-1 /bin/bash

进入容器后，先查看容器是什么系统
cat /etc/os-release

如果是 Ubuntu/Debian 系统，执行以下命令，如果是别的系统，让大模型给出对应系统的安装命令即可

apt update
apt install -y libcairo2-dev pkg-config python3-dev build-essential

再次安装插件发现问题解决