Broken recast (instalation)

[zarooba01]

File "/usr/local/aamks/evac/rvo2_dto.py", line 78, in _find_closest_exit
path = self.nav.nav_query(src=self.evacuees.get_position_of_pedestrian(evacuee), dst=(x, y), maxStraightPath=999)
File "/usr/local/aamks/geom/nav.py", line 121, in nav_query
status, out = query.findNearestPoly(startPos, polyPickExt, filtr)
AssertionError: m_nav

[kowalskiw]

Probably connected to the #51.

[zarooba01]

Problem happens on Ubuntu 22.04. It can be related to badly installed recast and obsolete version of go.

1. Check recast package
   pip list | grep recast
   You can get this information
   WARNING: Ignoring invalid distribution -recast (/usr/local/lib/python3.10/dist-packages)
2. Delete recast.

cd /usr/local/lib/python3.10/dist-packages
sudo rm _recast* 

3. Delete go
   You can read this site: https://go.dev/doc/manage-install#uninstalling
   which go
   It shows where go is installed. Delete this pwd.

sudo rm -rf /usr/local/go
sudo rm /etc/paths.d/go

Delete go-related lines in ~/.bashrc
4. System restart
5. New go install

cd
wget https://golang.org/dl/go1.19.4.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.19.4.linux-amd64.tar.gz

6. Recast install
   go install github.com/arl/go-detour/cmd/recast@latest
   Check it in ~/go/bin/
   This dir should contain recast file. If it exists, installation has finished successfully.

7. Comment some lines in worker_install.sh

# 	# RVO2
# 	echo; echo; echo "Installing RVO2 (agents collisions library) ..."; echo; echo;
# 	cd
# 	[ -d Python-RVO2 ] && { git -C Python-RVO2 pull; } || { git clone https://github.com/sybrenstuvel/Python-RVO2; }
# 	cd Python-RVO2
# 	python3 setup.py build
# 	sudo python3 setup.py install
 	cd

# 	# recast
# 	wget wget https://golang.org/dl/go1.15.1.linux-amd64.tar.gz 
# 	sudo tar -C /usr/local -xzf go1.15.1.linux-amd64.tar.gz
	echo "PATH=\"/usr/local/go/bin:\$PATH\"" >> ~/.profile
	export PATH=$PATH:/usr/local/go/bin

# 	echo; echo; echo "Installing recast (path finding library, navmesh producer)..."; echo; echo;
# 	cd
# 	go get -u github.com/arl/go-detour/cmd/recast
# 	[ -f ~/go/bin/recast ] || { 
# 		echo " ~/go/bin/recast is missing. It is likely that your golang version is obsolete."; 
# 		echo "Perhaps the below commands can fix golang. Once you have fixed golang, you can rerun the installer.

# sudo add-apt-repository ppa:longsleep/golang-backports
# sudo apt update
# sudo apt install golang-go
# ";
# exit; }

8. Rerun worker_install.sh -i

[kowalskiw]

@zarooba01 - can we considered this issue as solved? Do you plan any further development here?

[zarooba01]

This problem should not appear in the next version of installer/server_install.sh.

[zarooba01]

Recast installer fixed, can be closed.