After fresh Laravel installation has a conflict in composer dependencies.
botman/botman conflicts with Laravel core.
In core specified symfony/http-foundation v4.1.0 and botman platform includes "symfony/http-foundation": "2.8.*|3.0.*|3.1.*|3.2.*|3.3.*|3.4.*|4.0.*" only.
So should be |^4.* something like this.
After fresh Laravel installation has a conflict in composer dependencies. botman/botman conflicts with Laravel core. In core specified symfony/http-foundation v4.1.0 and botman platform includes
"symfony/http-foundation": "2.8.*|3.0.*|3.1.*|3.2.*|3.3.*|3.4.*|4.0.*"only. So should be|^4.*something like this.