Don't set policy asset when No Coin is enabled

src/init.cpp

@@ -1329,8 +1329,9 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
 #endif
 
     // ELEMENTS:
-    policyAsset = CAsset(uint256S(gArgs.GetArg("-feeasset", chainparams.GetConsensus().pegged_asset.GetHex())));
     if (g_con_any_asset_fees) {
+        // If fees can be paid in any asset, node operators need to be able to specify asset exchange 
+        // reates using either the static config file and/or the exchange rates RPCs.
         RegisterExchangeRatesRPCCommands(tableRPC);
         std::string file_path_string = gArgs.GetArg("-exchangeratesjsonfile", "");
         if (!file_path_string.empty()) {
@@ -1340,7 +1341,11 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
                 return InitError(strprintf(_("Unable to load exchange rates from JSON file %s: %s"), file_path_string, error));
             };
         }
+    } else {
+        // Otherwise, all fees must be paid using the policy asset.
+        policyAsset = CAsset(uint256S(gArgs.GetArg("-feeasset", chainparams.GetConsensus().pegged_asset.GetHex())));
     }
+
     /* Start the RPC server already.  It will be started in "warmup" mode
      * and not really process calls already (but it will signify connections
      * that the server is there and will be ready later).  Warmup mode will