If your Sims can't enter the house its most likely because, the "Foundations" in build mode is up and its too high for the sims to get in the house if you don't have stairs in front of the front door. the foundations is located underneath the little house icon in the build mode section. GOOD LUCK (my friend helped my * *!)
@emmamanch wrote:
The sims are unable to enter the house through 'go here' or using an object, resplacing the door and removing the wall does not fix the issue as the sims are unable to find a path. After changing households, the sims teleported inside and the issue seems to be fixed.