I encountered some issues while using the nuclei SDK.

[Aliuyanfeng]

I am on the Windows platform.

# nuclei version:  github.com/projectdiscovery/nuclei/v3 v3.6.2
go gun main.go

this is code:

package main

import (
	"context"
	"fmt"
	nuclei "github.com/projectdiscovery/nuclei/v3/lib"
	"github.com/projectdiscovery/nuclei/v3/pkg/output"
	"github.com/projectdiscovery/nuclei/v3/pkg/types"
	"sync"
)

type CustomResultHandler struct {
	results []*output.ResultEvent
	mu      sync.Mutex
}

func (h *CustomResultHandler) Handle(event *output.ResultEvent) {
	h.mu.Lock()
	defer h.mu.Unlock()

	h.storeResult(event)
}

func (h *CustomResultHandler) storeResult(event *output.ResultEvent) {
	// store result to database
	fmt.Printf("📊 TemplateID: %s\n", event.TemplateID)
}

func main() {
	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	opts := &types.Options{
		Tags: []string{"struts"},
	}

	// create nuclei engine with options
	ne, err := nuclei.NewNucleiEngineCtx(
		ctx,
		nuclei.WithOptions(opts),
	)
	if err != nil {
		fmt.Println(err)
	}

	// with custom result handler
	handler := &CustomResultHandler{}
	// load targets and optionally probe non http/https targets
	ne.LoadTargets([]string{"123.58.224.8:29067"}, false)
	err = ne.ExecuteWithCallback(handler.Handle)
	if err != nil {
		fmt.Println(err)
	}
	defer ne.Close()

}

The code cannot be executed.
error:

panic: dialers with executionId d5o8u3j8b340je5sfim0 not found
        panic: runtime error: invalid memory address or nil pointer dereference [recovered]
        panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x30 pc=0xbc1451]

goroutine 1 [running]:
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.New.OnceFunc.func5.1()
        D:/DevTools/go1.24.4.windows-amd64/go/src/sync/oncefunc.go:24 +0x69
panic({0x2d39aa0?, 0x69bd980?})
        D:/DevTools/go1.24.4.windows-amd64/go/src/runtime/panic.go:792 +0x132
github.com/projectdiscovery/gologger.newEventWithLevelAndLogger(0x6, 0x0)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/[email protected]/gologger.go:111 +0x71
github.com/projectdiscovery/gologger.(*Logger).Verbose(...)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/[email protected]/gologger.go:262
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.New.func2()
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/pkg/catalog/loader/loader.go:183 +0x14f
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.New.OnceFunc.func5()
        D:/DevTools/go1.24.4.windows-amd64/go/src/sync/oncefunc.go:27 +0x62
sync.(*Once).doSlow(0x513d20?, 0xc0000021c0?)
        D:/DevTools/go1.24.4.windows-amd64/go/src/sync/once.go:78 +0xab
sync.(*Once).Do(0xc0023e18c8?, 0x513aa5?)
        D:/DevTools/go1.24.4.windows-amd64/go/src/sync/once.go:69 +0x19
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.New.OnceFunc.func6()
        D:/DevTools/go1.24.4.windows-amd64/go/src/sync/oncefunc.go:32 +0x2d
panic({0x2be67c0?, 0xc005ddb850?})
        D:/DevTools/go1.24.4.windows-amd64/go/src/runtime/panic.go:792 +0x132
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.(*Store).LoadTemplatesWithTags(0xc00254c240, {0xc00681a020?, 0xc00249a610?, 0xc0060215c0?}, {0x0, 0x0, 0x0})
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/pkg/catalog/loader/loader.go:701 +0x5c5
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.(*Store).LoadTemplates(...)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/pkg/catalog/loader/loader.go:622     
github.com/projectdiscovery/nuclei/v3/pkg/catalog/loader.(*Store).Load(0xc00254c240)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/pkg/catalog/loader/loader.go:318 +0x30
github.com/projectdiscovery/nuclei/v3/lib.(*NucleiEngine).LoadAllTemplates(0xc000842500)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/lib/sdk.go:114 +0x647
github.com/projectdiscovery/nuclei/v3/lib.(*NucleiEngine).ExecuteCallbackWithCtx(0xc000842500, {0x404b550, 0xc000e72910}, {0xc0023e1ef0, 0x1, 0x24de3feaaa0?})
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/lib/sdk.go:257 +0x4d
github.com/projectdiscovery/nuclei/v3/lib.(*NucleiEngine).ExecuteWithCallback(...)
        D:/DevTools/GoPath/pkg/mod/github.com/projectdiscovery/nuclei/[email protected]/lib/sdk.go:304
main.main()
        D:/antiy/project/nucleiSDK/main.go:53 +0x216
exit status 2