I Cannot Edit assets It says (see below) I don't know what it means and really want it to go away. Everytime I click the x it pops back up. Please help. 
Object reference not set to an instance of an object [System.NullReferenceException]
Details:
No details
The mods I have are:
Automatic bulldoze
Moledozer
Ship line tool 1.1.0
Improved public transport 3.8.10
Multi-Track Station enabler
More network stuff
traffic manager: president edition
network extensions 2
Transport Line Rendering Fix
Spawn Points fix
Metro overhaul (a.k.a MOM)
81 titles (BloodyPenguin)
Prefab Hook
Pollution Remover Mod
Rush Hour
Enhanced Garbage AI
Skylines Overwatch
Demand Master
My PC is...
Windows 10 Pro Version: 1607
OS build: 14393.693
Processor: Intel(R) Core(TM) i7-6700 CPU@ 3.40GHz /(3.41 GHz)
Installed RAM: 16 GB
System Type: 64-bit operating system, x64-based processor
No touch screens
Dell
Object reference not set to an instance of an object [System.NullReferenceException]
Details:
No details
The mods I have are:
Automatic bulldoze
Moledozer
Ship line tool 1.1.0
Improved public transport 3.8.10
Multi-Track Station enabler
More network stuff
traffic manager: president edition
network extensions 2
Transport Line Rendering Fix
Spawn Points fix
Metro overhaul (a.k.a MOM)
81 titles (BloodyPenguin)
Prefab Hook
Pollution Remover Mod
Rush Hour
Enhanced Garbage AI
Skylines Overwatch
Demand Master
My PC is...
Windows 10 Pro Version: 1607
OS build: 14393.693
Processor: Intel(R) Core(TM) i7-6700 CPU@ 3.40GHz /(3.41 GHz)
Installed RAM: 16 GB
System Type: 64-bit operating system, x64-based processor
No touch screens
Dell
Last edited: