Since the update of terminfo to 6.1, running console applications with mono
doens't work anymore:

-----------------------------------------------------
mono UnSIN.exe 

Unhandled Exception:
System.TypeInitializationException: The type initializer for 'System.Console'
threw an exception. ---> System.TypeInitializationException: The type
initializer for 'System.ConsoleDriver' threw an exception. --->
System.Exception: Magic number is wrong: 542
  at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32&
position) [0x00028] in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.TermInfoReader..ctor (System.String term, System.String filename)
[0x0005f] in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.TermInfoDriver..ctor (System.String term) [0x00055] in
<8f8a76535f644930b25f735cdc17065c>:0 
  at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000]
in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.ConsoleDriver..cctor () [0x0004d] in
<8f8a76535f644930b25f735cdc17065c>:0 
   --- End of inner exception stack trace ---
  at System.Console.SetupStreams (System.Text.Encoding inputEncoding,
System.Text.Encoding outputEncoding) [0x00007] in
<8f8a76535f644930b25f735cdc17065c>:0 
  at System.Console..cctor () [0x0008e] in <8f8a76535f644930b25f735cdc17065c>:0 
   --- End of inner exception stack trace ---
  at UnSIN.Program.Main (System.String[] args) [0x00006] in
<7c4247c4deca4ba5a7657dbbe6ac76e0>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type
initializer for 'System.Console' threw an exception. --->
System.TypeInitializationException: The type initializer for
'System.ConsoleDriver' threw an exception. ---> System.Exception: Magic number
is wrong: 542
  at System.TermInfoReader.ReadHeader (System.Byte[] buffer, System.Int32&
position) [0x00028] in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.TermInfoReader..ctor (System.String term, System.String filename)
[0x0005f] in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.TermInfoDriver..ctor (System.String term) [0x00055] in
<8f8a76535f644930b25f735cdc17065c>:0 
  at System.ConsoleDriver.CreateTermInfoDriver (System.String term) [0x00000]
in <8f8a76535f644930b25f735cdc17065c>:0 
  at System.ConsoleDriver..cctor () [0x0004d] in
<8f8a76535f644930b25f735cdc17065c>:0 
   --- End of inner exception stack trace ---
  at System.Console.SetupStreams (System.Text.Encoding inputEncoding,
System.Text.Encoding outputEncoding) [0x00007] in
<8f8a76535f644930b25f735cdc17065c>:0 
  at System.Console..cctor () [0x0008e] in <8f8a76535f644930b25f735cdc17065c>:0 
   --- End of inner exception stack trace ---
  at UnSIN.Program.Main (System.String[] args) [0x00006] in
<7c4247c4deca4ba5a7657dbbe6ac76e0>:0
-----------------------------------------------------

My TERM is set to screen-256color, changing it to xterm fixed it.

-----------------------------------------------------
TERM=xterm mono UnSIN.exe 
ERROR: Invalid parameters!
-----------------------------------------------------

libslang2 seems to have had a similar issue see:

https://build.opensuse.org/request/show/574532