Problems with tunnels

[FVI]

Hello everyone. I tried to build a tunnel of a highway, but the game still did not connect the normal road with the tunnels. I tried again to build the tunnel from zero it and by dint of trying again I threw away at least 800 diamonds. Now the first tunnel is fine but I have to build more to complete the highways, and if these problems continue I will throw away thousands of diamonds!

[DualHD]

Hello everyone. I tried to build a tunnel of a highway, but the game still did not connect the normal road with the tunnels. I tried again to build the tunnel from zero it and by dint of trying again I threw away at least 800 diamonds. Now the first tunnel is fine but I have to build more to complete the highways, and if these problems continue I will throw away thousands of diamonds!

Make a tunnel ramp up or down. Use the arrow button. Make sure the tunnel and the road have 1 tile distance

[FVI]

Hello everyone. I tried to build a tunnel of a highway, but the game still did not connect the normal road with the tunnels. I tried again to build the tunnel from zero it and by dint of trying again I threw away at least 800 diamonds. Now the first tunnel is fine but I have to build more to complete the highways, and if these problems continue I will throw away thousands of diamonds!

Make a tunnel ramp up or down. Use the arrow button. Make sure the tunnel and the road have 1 tile distance

The tunnel I have to build is inside a mountain, you say you pass under it?

[LightBlue]

It always passed from underground not inside the mountain, you should choose the bridge up to connect the road with normal road. Use the building that allows you to put tunnel free. I forgot it's name.