Project doesn't build

[OskarD]

I might be doing something wrong, but this is the output I get from building. Is it just me, or are there several issues with this repo?

Build FAILED.

"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\downloader\downloader.csproj" (default target) (3:3) ->
(ResolveCodeAnalysisRuleSet target) ->
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\Microsoft.CSharp.CurrentVersion.targets(129,9): warning MSB 
3884: Could not find rule set file "MinimumRecommendedRules.ruleset". [c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\downloader\downloade 
r.csproj]


"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\downloader\downloader.csproj" (default target) (3:3) ->
(CoreCompile target) ->
  c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\downloader\Security\SignitureHelper.cs(69,28): warning CS0168: The variable 'ex' is decla 
red but never used [c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\downloader\downloader.csproj]


"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\process_manager\process_manager.csproj" (default target) (4:3) ->
(ResolveCodeAnalysisRuleSet target) ->
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\Microsoft.CSharp.CurrentVersion.targets(129,9): warning MSB 
3884: Could not find rule set file "MinimumRecommendedRules.ruleset". [c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\process_manager\proc 
ess_manager.csproj]


"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\simple-io-plugin\simple-io-plugin.csproj" (default target) (5:3) ->
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\Microsoft.CSharp.CurrentVersion.targets(129,9): warning MSB 
3884: Could not find rule set file "MinimumRecommendedRules.ruleset". [c:\Users\oskar\Desktop\code\overwolf-plugins\plugins\simple-io-plugin\sim 
ple-io-plugin.csproj]


"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\Microsoft.CSharp.CurrentVersion.targets(129,9): warning MSB 
3884: Could not find rule set file "MinimumRecommendedRules.ruleset". [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]    


"c:\Users\oskar\Desktop\code\overwolf-plugins\overwolf.plugins.sln" (Rebuild target) (1) ->
"c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj" (Rebuild target) (2) ->
(CoreCompile target) ->
  c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\simple-io-plugin-tests.cs(65,10): error CS8370: Feature 'collection expressions' is not  
available in C# 7.3. Please use language version 12.0 or greater. [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]        
  c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\simple-io-plugin-tests.cs(65,10): error CS1729: 'string' does not contain a constructor  
that takes 0 arguments [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]
  c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\simple-io-plugin-tests.cs(65,10): error CS1061: 'string' does not contain a definition f 
or 'Add' and no accessible extension method 'Add' accepting a first argument of type 'string' could be found (are you missing a using directive  
or an assembly reference?) [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]
  c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\simple-io-plugin-tests.cs(65,11): error CS0029: Cannot implicitly convert type 'overwolf 
.plugins.simpleio.FolderListenerTypes' to 'char' [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]
  c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\simple-io-plugin-tests.cs(66,10): error CS1503: Argument 4: cannot convert from 'string' 
 to 'overwolf.plugins.simpleio.FolderListenerTypes[]' [c:\Users\oskar\Desktop\code\overwolf-plugins\unittest\unittest.csproj]

    5 Warning(s)
    5 Error(s)