我正在尝试安装一个使用 opam 安装多个库的包（ https://github.com/SchornacklabSLCU/amfinder ）。但是，两个库安装失败：lablgtk 和 cairo2-gtk。我尝试通过 opam（opam install labgtk）直接安装这两个库，但得到了同样的错误：
User configuration:
~/.profile is already up-to-date.
[NOTE] Make sure that ~/.profile is well sourced in your ~/.bashrc.
[ERROR] There already is an installed switch named 4.08.0
[NOTE] Package camlzip is already installed (current version is 1.11).
[NOTE] Package magic-mime is already installed (current version is 1.2.0).
[NOTE] Package cairo2 is already installed (current version is 0.6.2).
[NOTE] Package odoc is already installed (current version is 2.0.0).
[NOTE] Package dune is already installed (current version is 2.9.1).
The following actions will be performed:
∗ install lablgtk 2.18.11
∗ install cairo2-gtk 0.6.2
===== ∗ 2 =====
Do you want to continue? [Y/n] y
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
⬇ retrieved cairo2-gtk.0.6.2 (cached)
⬇ retrieved lablgtk.2.18.11 (cached)
[ERROR] The compilation of lablgtk.2.18.11 failed at "./configure --prefix /home/alr/.opam/4.08.0
LABLGLDIR=/home/alr/.opam/4.08.0/lib/lablgl".
#=== ERROR while compiling lablgtk.2.18.11 ====================================#
# context 2.1.1 | linux/x86_64 | ocaml-base-compiler.4.08.0 | https://opam.ocaml.org#03fce048
# path ~/.opam/4.08.0/.opam-switch/build/lablgtk.2.18.11
# command ~/.opam/opam-init/hooks/sandbox.sh build ./configure --prefix /home/alr/.opam/4.08.0 LABLGLDIR=/home/alr/.opam/4.08.0/lib/lablgl
# exit-code 1
# env-file ~/.opam/log/lablgtk-16902-8d49b3.env
# output-file ~/.opam/log/lablgtk-16902-8d49b3.out
### output ###
# [...]
# checking native dynlink... checking for pkg-config... /home/linuxbrew/.linuxbrew/bin/pkg-config
# checking for GTK+ - version >= 2.0.0...
# *** 'pkg-config --modversion gtk+-2.0' returned 2.24.33, but GTK+ (2.24.32)
# *** was found! If pkg-config was correct, then it is best
# *** to remove the old version of GTK+. You may also be able to fix the error
# *** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing
# *** /etc/ld.so.conf. Make sure you have run ldconfig if that is
# *** required on your system.
# *** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH
# *** to point to the correct configuration files
# no
# configure: error: GTK+ is required
<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
┌─ The following actions failed
│ λ build lablgtk 2.18.11
└─
╶─ No changes have been performed
<><> lablgtk.2.18.11 troubleshooting ><><><><><><><><><><><><><><><><><><><><><>
=> This package requires gtk+ 2.0 development packages installed on your system
File "dune", line 4, characters 29-39:
4 | (libraries lablgtk2 cairo2 cairo2-gtk camlzip magic-mime)
^^^^^^^^^^
Error: Library "cairo2-gtk" not found.
pkg-config --modversion gtk+-2.0返回2.24.33
echo $LD_LIBRARY_PATH返回空路径。
echo $PKG_CONFIG_PATH返回/home/alr/.opam/4.08.0/lib/pkgconfig:
文件/etc/ld.so.conf包含以下行：include /etc/ld.so.conf.d/*.conf
我在带有 Ubuntu18.04 的 Windows10 上使用 WSL2。libgtk2.0-dev 已经安装。
我想图书馆的路径有错误，但不知道如何解决。任何帮助将不胜感激。
谢谢