FATA[0020] failed to initialize project: unable to scaffold with "base.go.kubebuilder.io/v3": exit status 2

[al3xandru]

First tutorial command fails:

operator-sdk init --domain mypopescu.com --repo github.com/al3xandru/memcached-operator.

The other similar issues suggest an incompatible go version. I made sure the above runs with go 1.16:

go version go1.16.14 darwin/amd64

Output

Writing kustomize manifests for you to edit...
Writing scaffold for you to edit...
Get controller runtime:
$ go get sigs.k8s.io/controller-runtime@v0.11.0
go: downloading github.com/evanphx/json-patch v0.5.2
go: downloading k8s.io/client-go v1.5.2
# sigs.k8s.io/json/internal/golang/encoding/json
/Users/alexandp/go/pkg/mod/sigs.k8s.io/json@v0.0.0-20211020170558-c049b76a60c6/internal/golang/encoding/json/encode.go:1249:12: sf.IsExported undefined (type reflect.StructField has no field or method IsExported)
/Users/alexandp/go/pkg/mod/sigs.k8s.io/json@v0.0.0-20211020170558-c049b76a60c6/internal/golang/encoding/json/encode.go:1255:18: sf.IsExported undefined (type reflect.StructField has no field or method IsExported)
Error: failed to initialize project: unable to scaffold with "base.go.kubebuilder.io/v3": exit status 2

[varshaprasad96]

@al3xandru you may have to bump the go version to 1.17. kubernetes-sigs/json has StructField.IsExported added which was introduced only in 1.17. Ref: https://pkg.go.dev/reflect#StructField.IsExported

[al3xandru]

1. It would be great if the required version of Go was clearly communicated. Different issues are directing users to use 1.16 not 1.17
2. With Go 1.17, it is the second step of the tutorial that fails.

[jmrodri]

As of operator-sdk 1.17 we require go 1.17: https://v1-18-x.sdk.operatorframework.io/docs/installation/#prerequisites-1

[jmrodri]

@VenkatRamaraju will double check the tutorial to make sure we're not stating conflicting information

[VenkatRamaraju]

Hey,

I'm able to run the operator-sdk init and create api commands with the latest operator-sdk (1.18) binary and the following go version -

go version go1.17.8 darwin/amd64

My suspicion is that this is some version mismatch. Try the following:

1. Update the operator-sdk binary to the latest version (i.e., 1.18) and ensure that your operator-sdk CLI invocation is referring to this binary.
2. Make sure you are using the latest go version, i.e., 1.17.7+
3. Make sure your GOROOT is set.
4. When you run operator-sdk version, the go version in that output is the same as the version in the go version command.

If you are still running into this error, let me know what the output of operator-sdk version is.

[tomasfabian]

Hey,

I'm able to run the operator-sdk init and create api commands with the latest operator-sdk (1.18) binary and the following go version -

go version go1.17.8 darwin/amd64

My suspicion is that this is some version mismatch. Try the following:

1. Update the operator-sdk binary to the latest version (i.e., 1.18) and ensure that your operator-sdk CLI invocation is referring to this binary.
2. Make sure you are using the latest go version, i.e., 1.17.7+
3. Make sure your GOROOT is set.
4. When you run operator-sdk version, the go version in that output is the same as the version in the go version command.

If you are still running into this error, let me know what the output of operator-sdk version is.

Hi @VenkatRamaraju @al3xandru, I had to run the following command at the beginning, otherwise I received the above mentioned error, too:

sudo -s

Hopefully somehow helpful.

[camilamacedo86]

HI @tomasfabian,

The tool will create/update/read files in the respective directory where you run operator-sdk init. So, if you have no permission to do that an error will be faced.

Then, since you say that execute the command as sudo sorted it out that means you have no permissions in the dir.
My two cents is that run chmod 777 on the dir will allow you to execute the SDK commands without the sudo.

[tomasfabian]

Hi @camilamacedo86,
now it is of course reasonable that it failed for permission issues, but from the bellow mentioned exception it wasn't so obvious ;)

Error: failed to initialize project: unable to scaffold with "base.go.kubebuilder.io/v3": exit status 2

I was thinking that something else went wrong (go version mismatch etc.). It could be helpful to mention it at least for developers coming from the Windows operating system in the documentation (quick start).

Thanks a lot.

[yimingtech]

operator-sdk version: "v1.19.0", commit: "728682c347f6335ee2a610e08790a5e1411508f4", kubernetes version: "v1.23", go version: "go1.18", GOOS: "darwin", GOARCH: "amd64" Is an error failed to create API: unable to run post-scaffold tasks of "base.go.kubebuilder.io/v3": exit status 2