"exports is not defined" error using gulp-babel

[pavliukpetro]

I have this error in the browser in the file that was compiled via gulp-babel.
The part from the gulp task is
.pipe(babel({
presets: ['@babel/preset-env'],
plugins: [
["@babel/plugin-transform-classes"]]
}))

[LAXITKUMAR]

Facing same issue, I guess transpiling for "amd" is not happening even after setting modules options as "amd".