Steps to reproduce.

1. File already exists (node_modules) on sls offline

npm run dev - this create a .build directory withing the /api folder. Run npm run dev a second time to see the error.

Error:
Error: EEXIST: file already exists, symlink '/***/fullstack-app/api/node_modules' -> '/***/fullstack-app/api/.build/node_modules'
Error: 

2. sls deploy not working - looking for node_modules in the wrong place

Run npm run deploy

Error:
Error: ENOENT: no such file or directory, stat '/***/fullstack-app/api/node_modules'