grunt-contrib-copy error (Error code: ENOENT) - gruntjs

Question

I searched internet and it looks only me had this problem with grunt-contrib-copy.
project
gruntfile.js
->app
->img
->pic1.png
->pic2.png
Result I expected:
project
gruntfile.js
->app
->dist
->img
->pic1.png
->pic2.png
->img
->pic1.png
->pic2.png
In another word, just copy files in /project/app/img to /project/app/dist/img.
Here is my copy config, which is NOT working:
copy: {
main: {
src: ['*.*'],
expend: true,
cwd: 'app/img/',
dest: 'app/dist/img/'
}
},
Here is error message:
Warning: Unable to read "download.png" file (Error code: ENOENT). Use --force to continue.
(download.png is the name of picture file)
How should I config the copy option? Thank you!

Answer 1

It looks like you have a typo, it should be expand instead of expend. So the cwd property is being ignored. Try the following config instead:
copy: {
main: {
src: ['**/*'],
expand: true,
cwd: 'app/img/',
dest: 'app/dist/img/'
}
},
The glob pattern *.* is probably not necessary as * will already match all files (unless you're specifically trying to match only files with a . in them.) Try using src: '*' to match all files within the single folder or src: '**/*' to match all files and folders within the cwd.