fix another csproj error in controlplane

main.go

@@ -10,7 +10,7 @@ import (
 // Some options here. Would be improved in beta release.
 const DEDUCT_PKGNAME_FROM_VARNAME = true
 const USE_PROJECT_NETVER_INSTEAD_OF_HINTPATH_NETVER = false
-const OPENXT_VERSION = "1.2-2"
+const OPENXT_VERSION = "1.2-3"
 
 func print_help_and_exit() {
 	println("Usage: openxt <subcommand> [options...]")

tools/csproj-to-5/main.go

@@ -130,6 +130,11 @@ func main() {
 		resultTxt += line + "\n"
 	}
 
+	// patch: if the csproj has no <TargetFramework> and <TargetFrameworkVersion> at all, we must fix this error with a default targetFramework.
+	if ! (stringContainsInsensitive(resultTxt, "<TargetFramework>") || stringContainsInsensitive(resultTxt, "<TargetFrameworkVersion>")) {
+		stringReplaceOnceInsensitive(resultTxt, "<PropertyGroup>", "<PropertyGroup><TargetFramework>net472</TargetFramework><GenerateTargetFrameworkAttribute>false</GenerateTargetFrameworkAttribute>")
+	}
+
 	err = ioutil.WriteFile(fname, []byte(resultTxt), 0644)
 	panicErrorIfAny(err, "WriteFile " + fname)
 }