Docker file error: (......no such file or directory

[RandyChen233]

Hi,

I get the following error on the last step :

(ICON_lab) randychen@randychen-Delta-15-A5EFK:~/projects/build$ docker build . -t ros2204
unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /home/randychen/projects/build/Dockerfile: no such file or directory

It seems like the docker file is not there. How should I get this docker file?

[lucasw]

You need to run docker from a directory with a dockerfile, the root README.md is a little unclear about that, but for example to run the ubuntu_2204 build inside docker do this:

cd ros_from_src/ubuntu_2204
docker build . -t ros_debian_2204

Or instead of docker build . you could docker build ../../ros_from_src or similar with the right relative path to the Dockerfile.

(The other ros_from_src/Dockerfile builds everything from source but I haven't been spending any time with that because I prefer the approach that uses the debian base packages, there may need to be updates to making building completely from source work)