Docker build fails: When using COPY with more than one source file, the destination must be a directory and end with a /

[cpudney]

I generated a Dockerfile using:

docker run -ti -v ${PWD}:/home/clowder/data clowder/generator:latest

Then when I build it using:

docker build . --tag=...

the following error results:

When using COPY with more than one source file, the destination must be a directory and end with a /

Fix is to edit the Dockerfile and replace change the line:

COPY * /home/clowder

to

COPY * /home/clowder/

Using Docker v20.10.8