Error while installing gym ignition

[PravatKumarPanda]

Got this error!

How can i fix it?

[AndrejOrsula]

Hello @PravatKumarPanda,

It is difficult to tell with the information you provided, but it seems that iDynTree is not installed properly on your system.

Try to follow the instructions in the Dockerfile to see if that can resolve your issue.

drl_grasping/Dockerfile

Lines 107 to 149 in b228354

	### Build iDynTree
	WORKDIR ${WS_SRC_DIR}
	RUN apt-get update && \
	apt-get install -yq --no-install-recommends \
	coinor-libipopt-dev \
	libeigen3-dev \
	libxml2-dev \
	qml-module-qt-labs-folderlistmodel \
	qml-module-qt-labs-settings \
	qml-module-qtmultimedia \
	qml-module-qtquick-controls \
	qml-module-qtquick-dialogs \
	qml-module-qtquick-window2 \
	qml-module-qtquick2 \
	qtbase5-dev \
	qtdeclarative5-dev \
	qtmultimedia5-dev \
	swig && \
	rm -rf /var/lib/apt/lists/* && \
	git clone https://github.com/robotology/idyntree --depth 1 -b v4.4.0 && \
	touch ${WS_SRC_DIR}/idyntree/COLCON_IGNORE && \
	mkdir ${WS_SRC_DIR}/idyntree/build && \
	cd ${WS_SRC_DIR}/idyntree/build && \
	cmake .. \
	-GNinja \
	-DCMAKE_BUILD_TYPE=Release \
	-DBUILD_SHARED_LIBS:BOOL=OFF \
	-DIDYNTREE_USES_PYTHON=True \
	-DIDYNTREE_USES_IPOPT:BOOL=ON && \
	cmake --build . --target install
	### Build Gym-Ignition
	WORKDIR ${WS_SRC_DIR}
	RUN git clone https://github.com/AndrejOrsula/gym-ignition.git --depth 1 -b drl_grasping && \
	touch ${WS_SRC_DIR}/gym-ignition/COLCON_IGNORE && \
	mkdir -p ${WS_SRC_DIR}/gym-ignition/build && \
	cd ${WS_SRC_DIR}/gym-ignition/build && \
	cmake .. -DCMAKE_BUILD_TYPE=Release && \
	cmake --build . && \
	cmake --build . --target install && \
	pip${PYTHON_VERSION} install --no-cache-dir numpy==1.21.6 && \
	pip${PYTHON_VERSION} install --no-cache-dir ${WS_SRC_DIR}/gym-ignition && \
	pip${PYTHON_VERSION} install --no-cache-dir -e ${WS_SRC_DIR}/gym-ignition/scenario

---

However, you might be facing other issues if you are trying to install this project locally, as many of the dependencies have been updated, and Gym-Ignition is unfortunately no longer maintained. You can find further discussion here.
If you want to try out this project, the simpler alternative approach is to use the prebuilt Docker image(s) as documented under instructions.