Changed error message to give some more info

1 files changed, 5 insertions, 3 deletions

diff --git a/run_and_record/c++/main.cpp b/run_and_record/c++/main.cpp
index af92d0e..81ca570 100644
--- a/run_and_record/c++/main.cpp
+++ b/run_and_record/c++/main.cpp
@@ -9,14 +9,16 @@ namespace kel {
 namespace sch {
 using namespace saw::schema;
  
-using RarArgsStruct = Struct<
+using RarConfig = Struct<
 >;
 
+// Additionally record the files which are needed to run the simulation
 using RarArgsTuple = Tuple<
+	Array<String>
 >;
 
 using RarArgs = Args<
-	RarArgsStruct,
+	RarConfig,
 	RarArgsTuple
 >;
 
@@ -35,7 +37,7 @@ saw::error_or<void> run_program(int argc, char** argv){
 
 	if(pid == 0){
 		execvp(argv[0], argv);
-		return saw::make_error<saw::err::critical>("ExecVP failed.");
+		return saw::make_error<saw::err::critical>("execvp failed. Usually the path doesn't exist or permissions are wrong.");
 	}
 
 	// Every other case