I have installed lablgtk in Cygwin and have compiled an example from this tutorial https://ocaml.org/learn/tutorials/introduction_to_gtk.html
ocamlfind ocamlc -g -package lablgtk2 -linkpkg simple.ml -o simple
However when I try to run the program with "run simple", nothing happens. I then compiled again, this time with the output as "simple.exe" and tried running this file with "./simple.exe". Now I get the following error:
Fatal error: cannot load shared library dlllablgtk2
Reason: %1 is not a valid Win32 application.
It should be noted that I was able to compile and run the program just a couple of days ago. I'm not sure what has changed since then and I'm not sure what to do next.
I do get the following warnings when compiling:
File "simple.ml", line 10, characters 2-44:
Warning 10: this expression should have type unit.
File "simple.ml", line 20, characters 2-54:
Warning 10: this expression should have type unit.
File "simple.ml", line 25, characters 2-69:
Warning 10: this expression should have type unit.
But this didn't prevent me from running the program previously. How can I resolve this issue?
答案 0 :(得分：1)
我通过将MingGW重新添加到我的路径来解决了这个问题：
export PATH=$PATH:"/usr/x86_64-w64-mingw32/sys-root/mingw/bin"
我以前做过这个，这就是为什么可执行文件以前工作的原因，但它似乎没有保存下次我登录时。之前，当我没有添加路径时，我无法安装lablgtk，因此无法编译程序，所以我收到了一个不同的错误。这次lablgtk已经安装，所以在编译成功的时候，我得到了一个非常不同的错误，导致了混乱。