auto completion is not working and some errors show once open theia csharp

[malikghanim]

I am facing a problem while opening theia on ubuntu 16.4, here is the errors, any help please

root INFO starting C# language server: /var/www/theia-csharp-extension/csharp/omnisharp/run -stdio -lsp
root ERROR C#: chmod: cannot access '/var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64': No such file or directory

root ERROR C#: /var/www/theia-csharp-extension/csharp/omnisharp/run: line 49: /var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64: No such file or directory

root ERROR [nsfw-watcher: 17716] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root INFO [nsfw-watcher: 17716] Started watching: /home/malikghanim/Code/5abeer/5abeer/test.cs
root INFO starting C# language server: /var/www/theia-csharp-extension/csharp/omnisharp/run -stdio -lsp
terminal ERROR Couldn't attach - can't find terminal with id: 1
root ERROR C#: chmod:
root ERROR C#: cannot access '/var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64'
root ERROR C#: : No such file or directory

root ERROR C#: /var/www/theia-csharp-extension/csharp/omnisharp/run: line 49: /var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64: No such file or directory

terminal ERROR Error attaching to terminal id 1, the terminal is most likely gone. Starting up a new terminal instead.
root ERROR [nsfw-watcher: 17734] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root ERROR [nsfw-watcher: 17734] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root INFO [nsfw-watcher: 17734] Started watching: /home/malikghanim/Code/test/.theia/settings.json
root INFO [nsfw-watcher: 17734] Started watching: /home/malikghanim/Code/test/test.cs
root WARN Collided keybinding is ignored; {"command":"monaco.editor.action.wordHighlight.next","keybinding":"f7","context":"editorTextFocus"} collided with {"command":"monaco.editor.action.diffReview.next","keybinding":"f7","context":"editorTextFocus"}
root WARN Could not register keybinding:
{"command":"monaco.editor.action.wordHighlight.next","keybinding":"f7","context":"editorTextFocus"}
Error: "f7" is in collision with something else [scope:0]
root WARN Collided keybinding is ignored; {"command":"monaco.editor.action.wordHighlight.prev","keybinding":"shift+f7","context":"editorTextFocus"} collided with {"command":"monaco.editor.action.diffReview.prev","keybinding":"shift+f7","context":"editorTextFocus"}
root WARN Could not register keybinding:
{"command":"monaco.editor.action.wordHighlight.prev","keybinding":"shift+f7","context":"editorTextFocus"}
Error: "shift+f7" is in collision with something else [scope:0]
root ERROR [nsfw-watcher: 17973] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root INFO [nsfw-watcher: 17973] Started watching: /home/malikghanim/Code/5abeer/5abeer/test.cs
root INFO starting C# language server: /var/www/theia-csharp-extension/csharp/omnisharp/run -stdio -lsp
root ERROR C#: chmod: cannot access '/var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64': No such file or directory

root ERROR C#: /var/www/theia-csharp-extension/csharp/omnisharp/run: line 49: /var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64: No such file or directory

root ERROR [nsfw-watcher: 17973] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root INFO starting C# language server: /var/www/theia-csharp-extension/csharp/omnisharp/run -stdio -lsp
root ERROR C#: chmod: cannot access '/var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64': No such file or directory

root ERROR C#: /var/www/theia-csharp-extension/csharp/omnisharp/run: line 49: /var/www/theia-csharp-extension/csharp/omnisharp/bin/mono.linux-x86_64: No such file or directory

root ERROR [nsfw-watcher: 18041] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root ERROR [nsfw-watcher: 18041] Request watchFileChanges failed with error: NSFW was unable to start watching that directory. Error: NSFW was unable to start watching that directory.
root INFO [nsfw-watcher: 18041] Started watching: /home/malikghanim/Code/test/.theia/settings.json
root INFO [nsfw-watcher: 18041] Started watching: /home/malikghanim/Code/test/test.cs

[binn]

Same here too, any idea how to fix?

[ghost]

Hi, the mono executable is 32bit. You have to install 32bit support on your ubuntu.
Execute the following commands:

sudo dpkg --add-architecture i386
sudo apt-get install libc6:i386 zlib1g:i386

The language server should start now.

Problem is, the autocompletion still doesn't work

[ghost]

Here seems to be another C# plugin, but we're not sure yet how to get it running.
We got the omnisharp-theia-plugin to work. Additional information how to do that can be found here.