[SystemLoader.cc:92] Failed to load system plugin : Could not find shared library. HOW TO SOLVER THAT ERROR?

[acannbayraktar]

Hi everyone,

I’m trying to run my Gazebo / Ignition simulation with my custom plugin libBoatPID.so, but I get the following error:
[Err] [SystemLoader.cc:92] Failed to load system plugin [libBoatPID.so] : Could not find shared library.

I have tried the following:

-Built the plugin using cmake and make in the boat_pid_plugin folder

-Checked that libBoatPID.so exists in ~/boat_pid_plugin/build

-Added the path to LD_LIBRARY_PATH

cmake_minimum_required(VERSION 3.10)
project(boat_pid_plugin)

# Find packages using simpler syntax
find_package(gz-sim8 REQUIRED)
find_package(gz-math7 REQUIRED)
find_package(gz-plugin2 REQUIRED)

set(CMAKE_CXX_STANDARD 17)

add_library(BoatPID SHARED src/BoatPID.cpp)


target_link_libraries(BoatPID PRIVATE
  gz-sim8::gz-sim8
  gz-math7::gz-math7
  gz-plugin2::gz-plugin2
)


install(TARGETS BoatPID
  LIBRARY DESTINATION lib/gz-sim-8/plugins
)

boat_pid_plugin/
├── CMakeLists.txt
├── src/
│ └── BoatPID.cpp
├── worlds/
└── boat_test.sdf

---

Envirorenmnt:
cmake version 3.22.1
g++ (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
windows 11 with WSL
ignitation math library

Could you please help me understand why Gazebo/Ignition cannot find my shared library, and how to fix it?