Error happens while running go build

[jinchihe]

/kind bug

What steps did you take and what happened:
Hello, when I trying to setting up metadata, make build finished, and make test all passed. But hit the below problem while go build how to work around this? Thanks a lot!

[root@jinchi1 metadata]# go build ./...
# ml_metadata/metadata_store/metadata_store_go_wrap
metadata_store_go_swig.cc:300:55: fatal error: ml_metadata/metadata_store/metadata_store.h: No such file or directory
 #include "ml_metadata/metadata_store/metadata_store.h"
                                                       ^
compilation terminated.

What did you expect to happen:

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Metadata version: master
• Kubeflow version: 0.5.1
• Minikube version:
• Kubernetes version: (use kubectl version): v1.11.1+icp
• OS (e.g. from /etc/os-release): Redhat 7.6

[jinchihe]

Seems there is metadata_store.h but how to use that? under the derectory, no link to there ... sorry not familar with bazel :-(

[root@jinchi1 metadata]# find /root/ -name "metadata_store.h" -print
/root/.cache/bazel/_bazel_root/fcb7a544947ed52711e3660d8265b57b/external/google_ml_metadata/ml_metadata/metadata_store/metadata_store.h

[zhenghuiwang]

Thanks for raising this issue. Which Go version do you use?

You have to enable export GO111MODULE=on

https://github.com/golang/go/wiki/Modules

[jinchihe]

@zhenghuiwang Thanks for you help. I'm using go1.12.5, But after enabled that, the problem still can be reproduced. I'm running on redhat 7.6 and baze 0.24.1, see below for more information.

[root@jinchi1 metadata]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.6 (Maipo)
[root@jinchi1 metadata]# go version
go version go1.12.5 linux/amd64
[root@jinchi1 metadata]# bazel version
Starting local Bazel server and connecting to it...
Build label: 0.24.1
Build target: bazel-out/k8-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Tue Apr 2 16:29:26 2019 (1554222566)
Build timestamp: 1554222566
Build timestamp as int: 1554222566
[root@jinchi1 metadata]# go env |grep -i gomod
GOMOD="/opt/kubeflow/shared/metadata/go.mod"

[zhenghuiwang]

/cc @neuromage

We haven't tried the build process on Redhat. It is possible that our SWIG generation may not work well on Redhat.

[jinchihe]

Yes, that works fine on Mac.

[jtfogarty]

/area engprod
/priority p2