From d6b78be9b6a2c1c6f0efaea90e1201e362548407 Mon Sep 17 00:00:00 2001
From: wp_xxyyzz <wp_xxyyzz@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Tue, 27 Jun 2017 07:52:52 +0000
Subject: [PATCH] tvplanit: Fix json demo crashing if data file does not yet
 exist.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@5964 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/tvplanit/source/vpjsonds.pas | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/components/tvplanit/source/vpjsonds.pas b/components/tvplanit/source/vpjsonds.pas
index 76c898c28..2b08a5533 100644
--- a/components/tvplanit/source/vpjsonds.pas
+++ b/components/tvplanit/source/vpjsonds.pas
@@ -477,9 +477,12 @@ var
   res: TVpResource;
   i, j: Integer;
 begin
-  if FFileName = '' then
+  if (FFileName = '') then
     raise Exception.Create(RSNoFilenameSpecified);
 
+  if not FileExists(FFileName) then
+    exit;
+
   stream := TFileStream.Create(FFilename, fmOpenRead + fmShareDenyWrite);
   try
     Resources.ClearResources;