conflicting types in allOf branches in schema: string vs object

[mjaow]

When I'm trying to use the Conditions type from knative

import	"knative.dev/pkg/apis"

type MyStruct struct{
     Conditions apis.Conditions `json:"conditions,omitempty"
}

apis.Conditions has a field with type VolatileTime

type Condition struct{
      LastTransitionTime VolatileTime `json:"lastTransitionTime,omitempty" description:"last time the condition transit from one status to another"`
}

type VolatileTime struct {
	Inner metav1.Time `json:",inline"`
}

then I run controller-gen crd:trivialVersions=true crd:crdVersions="v1beta1" rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases,

it will faied with conflicting types in allOf branches in schema: string vs object.

From error message, I guess it's type error for VolatileTime, so I'm trying to figure a way to overrides the type for this field LastTransitionTime . But I can't do it as it's a field in knative

Does anyone know how to deal with it?

[nitishkrishna]

I am getting the same exact error, my types.go has:

// Template wraps a json.RawMessage
// +kubebuilder:validation:Type=object
type TemplateSpec struct {
	json.RawMessage `json:",inline"`
}

[nitishkrishna]

I fixed my issue by moving to this release of controller-tools: v0.4.1-0.20200821122629-1dc8cc4f84c8

-       _ "sigs.k8s.io/controller-tools/cmd/controller-gen@v0.4.1"
+       _ "sigs.k8s.io/controller-tools/cmd/controller-gen@1dc8cc4f84c85b8f90aa58a87cbb768000f3518c"

[mjaow]

look similar, but seems a different one. I think you fixed it due to v0.4.1-0.20200821122629-1dc8cc4f84c8 will generate an any type instead of object, any type has no conflict with string. So it will work in v0.4.0 also at your scenerio @nitishkrishna

I can also generate an any type with v0.4.0, but will fail when apply to k8s, as k8s doesn't support any type

ref #505

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[markusthoemmes]

@mjaow this should now be fixed via the PR referenced above.

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@fejta-bot: Closing this issue.

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[aybansal-sudo]

i am facing a similar issue
conflicting types in allOf branches in schema: string vs object
Error: not all generators ran successfully
my types.go file has
// +kubebuilder:pruning:PreserveUnknownFields
// +kubebuilder:validation:Type=object
RequestPayload json.RawMessage json:"requestPayload"

after running controller-gen "crd:crdVersions={v1},trivialVersions=true" rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases
it failed with: conflicting types in allOf branches in schema: string vs object
Error: not all generators ran successfully.
Any ideas on how to proceed with this?