Godot: C#/Mono Project don't run

[leotada]

Godot version:
3.1.1 Mono version

OS/device including version:
Fedora Linux 30 x64
Mono 6.0.0 x64
Msbuild 16.0.0.0 for Mono

Issue description:
I run the project using a C# script and not build.

[leonardo@fedora-notebook Godot_v3.1.1-stable_mono_x11_64]$ DRI_PRIME=1 ./Godot_v3.1.1-stable_mono_x11.64
OpenGL ES 3.0 Renderer: Radeon 500 Series (POLARIS12, DRM 3.30.0, 5.1.20-300.fc30.x86_64, LLVM 8.0.0)
Mono: Logfile is: /home/leonardo/.local/share/godot/mono/mono_logs/2019_08_02 11.40.00 (25333).txt
Editing project: /home/leonardo/testec (::home::leonardo::testec)
OpenGL ES 3.0 Renderer: Radeon 500 Series (POLARIS12, DRM 3.30.0, 5.1.20-300.fc30.x86_64, LLVM 8.0.0)
Mono: Logfile is: /home/leonardo/.local/share/godot/mono/mono_logs/2019_08_02 11.40.03 (25355).txt
[leonardo@fedora-notebook Godot_v3.1.1-stable_mono_x11_64]$ Running: "/usr/bin/msbuild" "/home/leonardo/testec/testec.sln" /v:normal /t:Build "/p:Configuration=Tools" "/l:GodotSharpTools.Build.GodotBuildLogger,/home/leonardo/Programas/Godot_v3.1.1-stable_mono_x11_64/GodotSharp/Tools/GodotSharpTools.dll;/home/leonardo/.local/share/godot/mono/build_logs/2b9fc6edcc09ede0285a36ed243eea5f_Tools"
;1RMSBUILD : error MSB1025: Falha interna durante a execução do MSBuild.
System.IO.IOException: Invalid handle to path "/home/leonardo/testec/[Unknown]"
  at System.IO.FileStream.ReadData (System.Runtime.InteropServices.SafeHandle safeHandle, System.Byte[] buf, System.Int32 offset, System.Int32 count) [0x0002d] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.ReadInternal (System.Byte[] dest, System.Int32 offset, System.Int32 count) [0x00026] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.Read (System.Byte[] array, System.Int32 offset, System.Int32 count) [0x000a1] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.ReadBuffer () [0x000b3] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.Read () [0x00028] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.GetCursorPosition () [0x00048] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.Init () [0x002dc] in <5994468181014a05b48ecbf866f95378>:0 
  at System.ConsoleDriver.Init () [0x00000] in <5994468181014a05b48ecbf866f95378>:0 
  at System.Console.add_CancelKeyPress (System.ConsoleCancelEventHandler value) [0x00007] in <5994468181014a05b48ecbf866f95378>:0 
  at Microsoft.Build.CommandLine.MSBuildApp.Execute (System.String commandLine) [0x00075] in <bfc1a6800805411fb2f459e7ffe3c4e3>:0 

Unhandled Exception:
System.IO.IOException: Invalid handle to path "/home/leonardo/testec/[Unknown]"
  at System.IO.FileStream.ReadData (System.Runtime.InteropServices.SafeHandle safeHandle, System.Byte[] buf, System.Int32 offset, System.Int32 count) [0x0002d] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.ReadInternal (System.Byte[] dest, System.Int32 offset, System.Int32 count) [0x00026] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.Read (System.Byte[] array, System.Int32 offset, System.Int32 count) [0x000a1] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.ReadBuffer () [0x000b3] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.Read () [0x00028] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.GetCursorPosition () [0x00048] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.Init () [0x002dc] in <5994468181014a05b48ecbf866f95378>:0 
  at System.ConsoleDriver.Init () [0x00000] in <5994468181014a05b48ecbf866f95378>:0 
  at System.Console.add_CancelKeyPress (System.ConsoleCancelEventHandler value) [0x00007] in <5994468181014a05b48ecbf866f95378>:0 
  at Microsoft.Build.CommandLine.MSBuildApp.Execute (System.String commandLine) [0x00418] in <bfc1a6800805411fb2f459e7ffe3c4e3>:0 
  at Microsoft.Build.CommandLine.MSBuildApp.Main () [0x00028] in <bfc1a6800805411fb2f459e7ffe3c4e3>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.IO.IOException: Invalid handle to path "/home/leonardo/testec/[Unknown]"
  at System.IO.FileStream.ReadData (System.Runtime.InteropServices.SafeHandle safeHandle, System.Byte[] buf, System.Int32 offset, System.Int32 count) [0x0002d] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.ReadInternal (System.Byte[] dest, System.Int32 offset, System.Int32 count) [0x00026] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.FileStream.Read (System.Byte[] array, System.Int32 offset, System.Int32 count) [0x000a1] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.ReadBuffer () [0x000b3] in <5994468181014a05b48ecbf866f95378>:0 
  at System.IO.StreamReader.Read () [0x00028] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.GetCursorPosition () [0x00048] in <5994468181014a05b48ecbf866f95378>:0 
  at System.TermInfoDriver.Init () [0x002dc] in <5994468181014a05b48ecbf866f95378>:0 
  at System.ConsoleDriver.Init () [0x00000] in <5994468181014a05b48ecbf866f95378>:0 
  at System.Console.add_CancelKeyPress (System.ConsoleCancelEventHandler value) [0x00007] in <5994468181014a05b48ecbf866f95378>:0 
  at Microsoft.Build.CommandLine.MSBuildApp.Execute (System.String commandLine) [0x00418] in <bfc1a6800805411fb2f459e7ffe3c4e3>:0 
  at Microsoft.Build.CommandLine.MSBuildApp.Main () [0x00028] in <bfc1a6800805411fb2f459e7ffe3c4e3>:0 
ERROR: call_build: A Godot Engine build callback failed.
   At: editor/editor_node.cpp:4666.
WARNING: cleanup: ObjectDB Instances still exist!
   At: core/object.cpp:2095.
ERROR: cleanup: There are still MemoryPool allocs in use at exit!
   At: core/pool_vector.cpp:70.

Steps to reproduce:
You have to execute Godot by command line, and then run the C# project with the play button.

Minimal reproduction project:
testec.zip

[KoBeWi]

I can run the project just fine. Seems like some OS or configuration issue.

[leotada]

Apparently this error happens when Godot is executed by command line. I tested it now and it worked, starting by clicking, but by command line still not working.

[KoBeWi]

Works for me from command line too. I will just label it as "Needs Testing", maybe someone will run into the same problem :/

[leotada]

Works for me from command line too. I will just label it as "Needs Testing", maybe someone will run into the same problem :/

Which OS did you test?

[KoBeWi]

Ok, now I noticed this is Linux issue. I tried it on Windows.

[nathanfranke]

Cannot reproduce

Ubuntu 18.04 bionic
Mono 6.0.0.319
MsBuild 16.0.0.0

Confirming- am I just supposed to run the project in the editor using the play button?

[leotada]

Confirming- am I just supposed to run the project in the editor using the play button?

You have to execute Godot by command line, and then run with the play button.

[JarredAllen]

Has any progress been made on this? I'm encountering this issue whether I run Godot from the command line or from the GUI.

For reference, I'm running on Ubuntu 18.04 and I installed godot-mono using snap.

[nathanfranke]

Running the project as per the reproduction steps gives me a compiler error, but no MSBuild/Mono Native errors

ERROR: call_build: An EditorPlugin build callback failed.
   At: editor/editor_node.cpp:5134.

Ubuntu 18.04.2 LTS
Kernal x86_64 Linux 4.18.0-17-generic
MS Build Engine 16.3.0-ci
Mono JIT compiler version 6.4.0.198 (tarball Tue Sep 24 01:21:28 UTC 2019

[Torguen]

Not sure if my problem has to do with this.

This error appears to me just by adding a script but it seems to happen to me in a different way.
Use Win10 64.
In the forum I described how my problem happens.
https://godotforums.org/discussion/21482/problem-with-the-editor-in-c#latest
Any solution to this?

[hhedin]

I can confirm the same behavior as seen by @leotada

Invalid handle paths when executing Godot mono from shell, but works fine when launching from Nautilus.

Env

• Godot mono 3.1.1 (64-bit from https://godotengine.org/download/linux)
• Ubuntu 19.10
• Mono 6.4.0.198
• MsBuild 16.3.0

[jabcross]

Same problem here. Made me very confused for a while.

Linux MInt 19.3
Godot mono 3.2

[qdwang]

Same problem here.

Lubuntu 20.04
Godot mono 3.2.1

[Rombersoft]

Same problem here https://github.com/mono/mono/issues/19679

[eugeneBecker]

Try to remove godot config folder. You find folder in /home/username/.config/godot. Press Ctrl + H to show hidden files.

[Deregon]

Same issue here on Arch Linux, here are my specs:

Mono 6.10.0
dotnet 3.1.402
Godot 3.2.2-stable_mono

It still does not work even after deleting the config folder
I tried building my own project (which is the Godot official tutorial project) and the project Pong CS which is publicly available.
I get the same error as the OP: System.IO.IOException: Invalid handle to path "/home/deregon/Godot/Projects/Dodge the Creeps!/[Unknown]"

[eugeneBecker]

Same issue here on Arch Linux, here are my specs:

Mono 6.10.0
dotnet 3.1.402
Godot 3.2.2-stable_mono

It still does not work even after deleting the config folder
I tried building my own project (which is the Godot official tutorial project) and the project Pong CS which is publicly available.
I get the same error as the OP: System.IO.IOException: Invalid handle to path "/home/deregon/Godot/Projects/Dodge the Creeps!/[Unknown]"

Hi! So i don't have any issues on Arch Linux. Try to change Build Tool in Editor Settings from dotnetCLI to MSBuild (Mono). You can find Mono section at the bottom. Also i install these packages:
mono
mono-msbuild
dotnet-sdk
dotnet-runtime
dotnet-targeting-pack

[Deregon]

I tried to use both dotnetCLI and MSBuild but they both throw the same IOException.
I had all listed packages installed with the exception of mono-msbuild, which I installed but it still cannot build.

[eugeneBecker]

I tried to use both dotnetCLI and MSBuild but they both throw the same IOException.
I had all listed packages installed with the exception of mono-msbuild, which I installed but it still cannot build.

Try to remove godot config folder.
You can use this command rm -r .config/godot/
And change to MSBuild (Mono) again

[Deregon]

Tried that and it finally worked!
Thanks for your support