Hi,
As talked in #890 I had an error when transpiling for Ionic. I thought your solution of adding
"typeRoots": [ "node_modules/@types" ],
in tsconfig.json file worked for me. But I have realized that what really had worked , was to add an import inside typeorm module. I added:
import "@types/node" to file "typeorm/driver/mongodb/MongoConnectionOptions.d.ts"

So do you think only adding that modification to tsconfig.json should work?