Cannot read property 'validateSync' of undefined and src folder not exist

gulp.task('task3', function () {
return gulp.src('./src/inject/temp2-min.js')
.pipe(javascriptObfuscator())
.pipe(concat('temp3-min.js'))
.pipe(gulp.dest('./src/inject'));

});

C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\src\index.ts:100
return getFromContainer(Validator).validateSync(schemaNameOrObject as Object, objectOrValidationOptions as ValidatorOptions);
^
TypeError: Cannot read property 'validateSync' of undefined
at Object.validateSync (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\src\index.ts:100:43)
at new Options (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\javascript-obfuscator\dist\webpack:\src\options\Options.ts:179:55)
at Binding.dynamicValue (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\javascript-obfuscator\dist\webpack:\src\container\InversifyContainerFac
ade.ts:43:24)
at _resolveRequest (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\inversify\lib\resolution\resolver.js:39:30)
at Object.resolve (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\inversify\lib\resolution\resolver.js:65:12)
at C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\inversify\lib\container\container.js:220:37
at Container._get (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\inversify\lib\container\container.js:211:44)
at Container.get (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\inversify\lib\container\container.js:176:21)
at InversifyContainerFacade.get (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\javascript-obfuscator\dist\webpack:\src\container\InversifyCont
ainerFacade.ts:99:34)
at Function.obfuscate (C:\Users\myuser\AppData\Roaming\npm\node_modules\gulp-javascript-obfuscator\node_modules\javascript-obfuscator\dist\webpack:\src\JavaScriptObfuscator.ts:24:63)

****
i check this "gulp-javascript-obfuscator" folder and src not exist.
then reinstall 'gulp-javascript-obfuscator' ,
but again i get that error.
i think problem is "utf-8" when reading file.

Reproduce the reported gulp task using gulp.src('./src/inject/temp2-min.js') and javascriptObfuscator(), then start with src/index.ts around the validateSync call and the javascript-obfuscator Options.ts stack entries. Confirm whether the failure is caused by the missing package src path, input handling, or encoding, and verify that the task completes without the reported error.

Written by the indexing model from the issue text.