EPERM: operation not permitted, open on second run of task. First run of task terminated with code 0

[jclarkcds]

I'm using gulp-webp to optimize images in a .net MVC 5.2.7 project.

gulpfile.js:

var gulp = require('gulp');
var gulpSass = require('gulp-sass');
var csso = require('gulp-csso');
var webp = require('gulp-webp');
gulpSass.complier = require('dart-sass');
gulp.task('compile-sass', function () {
    return gulp.src('./src/custom.scss')
        .pipe(gulpSass()).pipe(csso()).pipe(gulp.dest('./Content'));
});

//This task will create *.webp compressed images from the jpgs and pngs in the images folder.
gulp.task('convert-webp', function () {
    return gulp.src('images/*/*.{jpg,png}')
        .pipe(webp({ quality: 50 }))
        .pipe(gulp.dest('images', { overwrite: true }))
});

On my first run of task 'convert-webp':

[06:53:47] Using gulpfile ~\source\Workspaces\xxx\xxx\Gulpfile.js
[06:53:47] Starting 'convert-webp'...
[06:53:58] Finished 'convert-webp' after 11 s
Process terminated with code 0.
On any subsequent run of task 'convert-webp':

[07:00:28] Using gulpfile ~\source\Workspaces\xxx\xxx\Gulpfile.js
[07:00:28] Starting 'convert-webp'...
[07:00:29] 'convert-webp' errored after 606 ms
[07:00:29] Error: EPERM: operation not permitted, open C:\Users\jclark\source\Workspaces\xxx\xxx\images\logo\logo1.webp'
All the permission's are correct. If I delete *.webp, the task completes with terminated return code 0.

Can I get some direction to a solution?

[supremeliuao]

I had the same problem in my project

my config

const { src: SRC, dest: DEST } = require('gulp');
const WEBP = require('gulp-webp');

function defaultTask() {
return SRC('imgs/**/*.{png,jpg}').pipe(WEBP()).pipe(DEST('output/imgs'))
}

exports.default = defaultTask;

my error

[17:58:20] Using gulpfile E:\iyouTest\gulp\gulpfile.js
[17:58:20] Starting 'default'...
[17:58:20] 'default' errored after 125 ms
[17:58:20] Error in plugin "gulp-webp"
Message:
ϵͳ�Ҳ���ָ����·����

Details:
errno: ENOENT
code: ENOENT
syscall: spawn E:\iyouTest\gulp\node_modules\cwebp-bin\vendor\cwebp.exe
killed: false
stdout:
stderr: ϵͳ�Ҳ���ָ����·����

failed: true
signal: null
cmd: E:\iyouTest\gulp\node_modules\cwebp-bin\vendor\cwebp.exe -quiet -mt -o C:\Users\admin\AppData\Local\Temp\73db35a7-f35f-4ef2-8427-c20b24ecbbdd C:\Users\admin\AppData\Local\Temp\c471593d-918a-485e-84d2-bd8ef1082d88
timedOut: false
fileName: E:\iyouTest\gulp\imgs\advertisement.png
domainEmitter: [object Object]
domainThrown: false