fix issue with calling getSettings; document issue

devuser_guide/content/api/architecture_development/common_errors.md

@@ -78,6 +78,16 @@ If you are using an `Input` QML prop, to get the current value use `idName.TextF
 
 a common scenario this error can happen is when trying to immediatly access something in status-go when the app starts before the node is ready. it can also happen due to 2 threads attempting to call & change something from status-go at the same time
 
+### Error: type mismatch: got <> but expected one of:
+
+Sometimes this can happen when using generics, it can be solved by either passing the parameters explicitily:
+
+`getSetting[string](self.status.settings, Setting.SigningPhrase)`
+
+or using typedesc param with `:` like:
+
+`self.status.settings.getSetting[:string](Setting.SigningPhrase)`
+
 ## Warnings
 
 ### QML anchor warnings

src/app/wallet/core.nim

@@ -48,7 +48,7 @@ proc init*(self: WalletController) =
   self.status.events.on("assetChanged") do(e: Args):
     self.view.updateView()
 
-  self.view.setSigningPhrase(self.status.settings.getSetting[string](Setting.SigningPhrase))
+  self.view.setSigningPhrase(self.status.settings.getSetting[:string](Setting.SigningPhrase))
   self.view.setEtherscanLink(self.status.settings.getCurrentNetworkDetails().etherscanLink)
 
   self.status.events.on(SignalType.Wallet.event) do(e:Args):