Instant Errors Messages on Fresh Unity Project

Unity Engine
1

I have just made a new Unity project for my new game and I instantly get these error messages:

Could not start compilationWin32Exception: ApplicationName=‘“C:/Program Files (x86)/Unity/Editor/Data/Mono\bin\mono.exe”’, CommandLine=‘“C:/Program Files (x86)/Unity/Editor/Data/Mono\lib/mono/unity\smcs.exe” @ /UnityTempFile-d588018b83c91ba42896ef1630bd37ba’, CurrentDirectory=‘C:/Users/Adam/Documents/New Unity Project 1/Assets/…’
System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
System.Diagnostics.Process.Start ()
(wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start ()
UnityEditor.Utils.Program.Start () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Utils/Program.cs:33)
UnityEditor.Scripting.Compilers.MonoScriptCompilerBase.StartCompiler (BuildTarget target, System.String compiler, System.Collections.Generic.List1 arguments, Boolean setMonoEnvironmentVariables) (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/MonoScriptCompilerBase.cs:32) UnityEditor.Scripting.Compilers.MonoScriptCompilerBase.StartCompiler (BuildTarget target, System.String compiler, System.Collections.Generic.List1 arguments) (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/MonoScriptCompilerBase.cs:20)
UnityEditor.Scripting.Compilers.MonoCSharpCompiler.StartCompiler () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/MonoCSharpCompiler.cs:48)
UnityEditor.Scripting.Compilers.ScriptCompilerBase.BeginCompiling () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/ScriptCompilerBase.cs:60)

Compilation failed because the compiler couldn’t be executed!

Could not start compilationWin32Exception: ApplicationName=‘“C:/Program Files (x86)/Unity/Editor/Data/Mono\bin\mono.exe”’, CommandLine=‘“C:/Program Files (x86)/Unity/Editor/Data/Mono\lib/mono/unity\us.exe” @ /UnityTempFile-951297d8f0f3e5e48a69a9ffb48d41af’, CurrentDirectory=‘C:/Users/Adam/Documents/New Unity Project 1/Assets/…’
System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInfo startInfo, System.Diagnostics.Process process)
System.Diagnostics.Process.Start ()
(wrapper remoting-invoke-with-check) System.Diagnostics.Process:Start ()
UnityEditor.Utils.Program.Start () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Utils/Program.cs:33)
UnityEditor.Scripting.Compilers.MonoScriptCompilerBase.StartCompiler (BuildTarget target, System.String compiler, System.Collections.Generic.List1 arguments, Boolean setMonoEnvironmentVariables) (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/MonoScriptCompilerBase.cs:32) UnityEditor.Scripting.Compilers.MonoScriptCompilerBase.StartCompiler (BuildTarget target, System.String compiler, System.Collections.Generic.List1 arguments) (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/MonoScriptCompilerBase.cs:20)
UnityEditor.Scripting.Compilers.UnityScriptCompiler.StartCompiler () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/UnityScriptCompiler.cs:62)
UnityEditor.Scripting.Compilers.ScriptCompilerBase.BeginCompiling () (at C:/BuildAgent/work/d63dfc6385190b60/Editor/Mono/Scripting/Compilers/ScriptCompilerBase.cs:60)

Compilation failed because the compiler couldn’t be executed!

I have tried clearing the messages and starting my new game by adding a First Person Controller to the scene but all the scripts on the First Person Controller say "The associated script can not be loaded. please fix any compile errors and assign a valid script.

I have never made a new Unity project that instantly had errors.

Please help!!

1 Like
2

I fixed it. Norton Anti-virus was putting mono.exe in quarantine.

1 Like
3

Could you please tell me how to fix this? I think I have the same problem with Norton.

4

I just had the exact same issue when upgrading to 4.6.3. I never had it before when upgrading but this time Norton heuristics saw Mono as a terrible danger to the future of all mankind and decided to exterminate it… Of course Norton wanted to keep me living in a happy bliss so decided not to let me know. Thanks for pointing me in the right direction!