Difficulty running turtlebot examples #343
Comments
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Probably the locked nixpkgs version is too old. cc @hacker1024 |
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Ah yep, sorry about that! We should maybe start using I'm not sure how that can be implemented in rosdistro, though - we might just need to split on the period in Super Flore. |
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A silly workaround for immediate use would be to add an self: super:
{
opencv = super.opencv.override ({ passthru ? { }, ... }: self.lib.optionalAttrs (!super.opencv ? cxxdev) {
passthru = passthru // { cxxdev = self.opencv; };
});
} |
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@hacker1024 I assume its |
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By chance, is it possible to easily fix this? If i just override opencv, my computer has to rebuild a lot of packages. |
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I updated nixpkgs. Probably will break 10 new things though... |
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Build is fixed now, but Gazebo just seems to hang without ever opening a window when I tested it. |
I've seen this happen when the pinned Nixpkgs gets too old in comparison to the revision used to build NixOS. |
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Is it related to this? #323 I patched my devshell with this and it stopped roscore from hanging, not sure if it is the same issue. |
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Here I have similar problems. I was using flakes to build the project and it succeeded. However, when I tried to run the launch file, it gave me the same outcome as shown in the second case of the original post. The same thing happened when I simply ran 'roscore' from the terminal. |
It looks like this is in fact the issue. It originates from this issue in ros_comm which is fixed by this pull request: which is where the patch in #323 originates from. |
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@grnnja can you share the last working commit of this repo (nix-ros-overlay) that you were using before making this issue? |
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Hi all, having the same issue with roscore hanging with the following versions: I can also provide a minimal example if that's helpful |
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@MatthewCroughan @taylorpool I don't have the exact commit where nix-ros-overlay worked for me, but I have it working right now after applying the rosgraph patch I mentioned here #343 (comment). Here is a minimal flake and the patch.
{
description = "A basic flake with a shell";
inputs =
{
nixpkgs.url = "github:lopsided98/nixpkgs/nix-ros";
flake-utils.url = "github:numtide/flake-utils";
ros-flake.url = "github:lopsided98/nix-ros-overlay";
};
outputs = { self, nixpkgs, flake-utils, ros-flake }:
flake-utils.lib.eachDefaultSystem (system:
let
# fixes roscore hanging
# https://github.com/lopsided98/nix-ros-overlay/issues/323
fix-ros-logging = (final: prev: {
rosPackages.noetic = prev.rosPackages.noetic.overrideScope (rosSelf: rosSuper: {
rosgraph = rosSuper.rosgraph.overrideAttrs ({ patches ? [ ], ... }: {
patches = patches ++ [
./rosgraph.patch
];
});
});
});
pkgs = import nixpkgs
{
inherit system;
overlays = [
ros-flake.overlays.default
fix-ros-logging
];
};
ros = pkgs.rosPackages.noetic;
in
{
devShell = pkgs.mkShell
{
buildInputs = with pkgs; [
ros.ros-core
];
};
});
# I had to add myself as a trusted user in my nixos config for this to work
# https://discourse.nixos.org/t/nix-build-trying-to-build-basic-tools-for-all-packages-from-scratch/11097/4
nixConfig = {
substituters = "https://cache.nixos.org https://ros.cachix.org";
trusted-public-keys = "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= ros.cachix.org-1:dSyZxI8geDCJrwgvCOHDoAfOm5sV1wCPjBkKL+38Rvo=";
};
}
diff --git a/ros_comm-release-release-noetic-rosgraph-1.16.0-1/src/rosgraph/roslogging.py b/ros_comm-release-release-noetic-rosgraph-1.16.0-1-patched/src/rosgraph/roslogging.py
index 9ecc121..5adc95f 100644
--- a/src/rosgraph/roslogging.py
+++ b/src/rosgraph/roslogging.py
@@ -69,6 +69,8 @@ class RospyLogger(logging.getLoggerClass()):
break
if f.f_back:
f = f.f_back
+ else: # Reached the last stack frame and found no matching one.
+ raise ValueError("Could not find function [%s] on the framestack"%func_name)
# Jump up two more frames, as the logger methods have been double wrapped.
if f is not None and f.f_back and f.f_code and f.f_code.co_name == '_base_logger': |
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That worked! Thank you so much! |
Hi! I'm having difficulty running the example turtlebot flake command. It tries to find
opencv.cxxdevbut can't. Not sure if this is a problem on my end.with the nix shell example, it pulls the packages and compiles successfully but I am unable to run the demo. I let it sit for a few minutes and nothing happened before I ctrl+c'd the process. Again I'm not sure if this is a problem on my end or not.
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