# Invalid reference format docker while setting up development environment

**URL:** https://forums.mobyproject.org/t/invalid-reference-format-docker-while-setting-up-development-environment/279
**Category:** Support
**Created:** [March 25, 2018, 12:45pm UTC](https://forums.mobyproject.org/t/invalid-reference-format-docker-while-setting-up-development-environment/279 "2018-03-25T12:45:27Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![namnguyen](https://avatars.discourse-cdn.com/v4/letter/n/f1d935/32.png) [@namnguyen](https://forums.mobyproject.org/u/namnguyen)
#### Post date: [March 25, 2018, 12:45pm UTC](https://forums.mobyproject.org/t/invalid-reference-format-docker-while-setting-up-development-environment/279/1 "2018-03-25T12:45:27Z")

</div>

Hi,  
I was trying to build the development environment for the Moby project on Github following these instructions [https://github.com/moby/moby/blob/231a4408f2d691838e4f821eedb7439c4e1b3f56/docs/contributing/set-up-dev-env.md](https://github.com/moby/moby/blob/231a4408f2d691838e4f821eedb7439c4e1b3f56/docs/contributing/set-up-dev-env.md)  
However, when I was in the task 2.4 to build a development environment image and run it in a container, I’ve encountered this error rather than a successful message

```
docker run --rm -i --privileged -e DOCKER_CROSSPLATFORMS -e BUILD_APT_MIRROR -e BUILDFLAGS -e KEEPBUNDLE -e DOCKER_BUILD_ARGS -e DOCKER_BUILD_GOGC -e DOCKER_BUILD_PKGS -e DOCKER_BASH_COMPLETION_PATH -e DOCKER_CLI_PATH -e DOCKER_DEBUG -e DOCKER_EXPERIMENTAL -e DOCKER_GITCOMMIT -e DOCKER_GRAPHDRIVER -e DOCKER_INCREMENTAL_BINARY -e DOCKER_LDFLAGS -e DOCKER_PORT -e DOCKER_REMAP_ROOT -e DOCKER_STORAGE_OPTS -e DOCKER_USERLANDPROXY -e TEST_INTEGRATION_DIR -e TESTDIRS -e TESTFLAGS -e TIMEOUT -e HTTP_PROXY -e HTTPS_PROXY -e NO_PROXY -e http_proxy -e https_proxy -e no_proxy -e VERSION -e PLATFORM -v "/Users/namnguyen/Self-taught/Open source/moby-fork/.:/go/src/github.com/docker/docker/." -v /Users/namnguyen/Self-taught/Open source/moby-fork/.git:/go/src/github.com/docker/docker/.git -v "dockerdev-go-pkg-cache-gopath:/go/pkg" -v "dockerdev-go-pkg-cache-goroot-linux_amd64:/usr/local/go/pkg/linux_amd64" -v "dockerdev-go-pkg-cache-goroot-linux_amd64_netgo:/usr/local/go/pkg/linux_amd64_netgo" -t "docker-dev:dry-run-test" bash

```

docker: invalid reference format.  
See ‘docker run --help’.  
make: \*\*\* [shell] Error 125

I am using Mac OSX, and my docker version is 17.12.0-ce

Has anyone ever experienced something similar and can guide me through it? Thanks

Nam

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<div class="post-metadata">

### Author: ![hairyhenderson](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.mobyproject.org/hairyhenderson/32/25_2.png) [@hairyhenderson](https://forums.mobyproject.org/u/hairyhenderson)
#### Post date: [March 25, 2018, 5:58pm UTC](https://forums.mobyproject.org/t/invalid-reference-format-docker-while-setting-up-development-environment/279/2 "2018-03-25T17:58:49Z")

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> [@namnguyen](#):
>
> ```auto
> -v /Users/namnguyen/Self-taught/Open source/moby-fork/.git:/go/src/github.com/docker/docker/.git
> 
> ```

I believe the issue is that you have a space in your path, and you haven’t double-quoted one of the bind-mount options, so `docker run` thinks you’re trying to run an image named `source/moby-fork/.git:/go/src/github.com/docker/docker/.git` (which is obviously not what you wanted!)