wailsapp/wails · error

LoadResource failed

Error message

LoadResource failed

What it means

Error "LoadResource failed" thrown in wailsapp/wails.

Source

Thrown at v3/pkg/w32/kernel32.go:203

}

func LockResource(hResData HGLOBAL) unsafe.Pointer {
	ret, _, _ := procLockResource.Call(uintptr(hResData))

	if ret == 0 {
		panic("LockResource failed")
	}

	return unsafe.Pointer(ret)
}

func LoadResource(hModule HMODULE, hResInfo HRSRC) HGLOBAL {
	ret, _, _ := procLoadResource.Call(
		uintptr(hModule),
		uintptr(hResInfo))

	if ret == 0 {
		panic("LoadResource failed")
	}

	return HGLOBAL(ret)
}

func GetLastError() uint32 {
	ret, _, _ := procGetLastError.Call()
	return uint32(ret)
}

func OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) HANDLE {
	inherit := 0
	if inheritHandle {
		inherit = 1
	}

	ret, _, _ := procOpenProcess.Call(
		uintptr(desiredAccess),

View on GitHub (pinned to 0e754b1b40)

Solutions

1. Pass the correct module handle and a valid HRSRC returned by FindResource; LoadResource fails when the resource cannot be found or loaded.
2. Ensure the resource data is present in the module and not corrupted; verify with FindResource before calling LoadResource.
3. Check for low-memory conditions, which can prevent the resource from being loaded.

When it happens

Trigger: Occurs when LoadResource returns NULL, e.g. the resource handle is invalid or the resource could not be loaded from the module.

Common situations: See trigger scenarios.

AI-assisted analysis of wailsapp/wails@0e754b1b40 (2026-08-15). Data as JSON: /api/errors/323f308b7b25f407. Report an issue: GitHub.