Missing path in file options

[majabee]

Module Versions:
node: 7.2.1
npm: 3.10.10
gulp: 3.9.1
gulp-concat: 2.6.1
gulp-sourcemaps: 2.2.1

When I´m running my gulp concat task i get this error message:

[21:34:18] Starting 'concatjs'...
[21:34:18] 'concatjs' errored after 15 ms
[21:34:18] Error: gulp-concat: Missing path in file options
at module.exports (/Users/xx/yy/sites/projects/gulptest/node_modules/gulp-concat/index.js:32:11)
at Gulp. (/Users/xx/yy/sites/projects/gulptest/gulpfile.js:242:9)
at module.exports (/Users/xx/yy/sites/projects/gulptest/node_modules/orchestrator/lib/runTask.js:34:7)
at Gulp.Orchestrator._runTask (/Users/xx/yy/sites/projects/gulptest/node_modules/orchestrator/index.js:273:3)
at Gulp.Orchestrator._runStep (/Users/xx/yy/sites/projects/gulptest/node_modules/orchestrator/index.js:214:10)
at Gulp.Orchestrator.start (/Users/xx/yy/sites/projects/gulptest/node_modules/orchestrator/index.js:134:8)
at /usr/local/lib/node_modules/gulp/bin/gulp.js:129:20
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
at Module.runMain (module.js:607:11)
at run (bootstrap_node.js:420:7)
at startup (bootstrap_node.js:139:9)
at bootstrap_node.js:535:3

my gulpfile looks like this:

var concat = require('gulp-concat');
var sourcemaps = require('gulp-sourcemaps');

gulp.task('concatjs', function() {
  return gulp.src([
    './src/core/scripts/vendor/source1.js',
    './src/core/scripts/vendor/source2.js'
  ])
  .pipe(sourcemaps.init())
  .pipe(concat(['global.js'], {newLine: ';'}))
  .pipe(sourcemaps.write())
  .pipe(gulp.dest('./build/scripts'));
});

gulp.task('default', ['concatjs']);

What can I do to solve this and what is the problem.

[yocontra]

concat('global.js', {newLine: ';'}) not concat(['global.js'], {newLine: ';'}) - the argument is a string not an array

[majabee]

THANK YOU