From ff387a722e573b1bf24b7e04b6ce5e6982b1e540 Mon Sep 17 00:00:00 2001
From: Matthias Dittrich <matthi.d@gmail.com>
Date: Sat, 23 Jul 2016 20:19:33 +0200
Subject: [PATCH] fix exception when dotnet cli is not installed.

---
 src/app/FakeLib/DotNetCLIHelper.fs | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/app/FakeLib/DotNetCLIHelper.fs b/src/app/FakeLib/DotNetCLIHelper.fs
index e2d7fa67de5..38189d56076 100644
--- a/src/app/FakeLib/DotNetCLIHelper.fs
+++ b/src/app/FakeLib/DotNetCLIHelper.fs
@@ -1,5 +1,5 @@
 /// Contains a task which can be used to run dotnet CLI commands.
-module Fake.DotNet
+module Fake.DotNetCli
 
 open Fake
 open System
@@ -43,13 +43,15 @@ let getVersion() =
 
 /// Checks wether the dotnet CLI is installed
 let isInstalled() =
-    let processResult = 
-        ExecProcessAndReturnMessages (fun info ->  
-          info.FileName <- commandName
-          info.WorkingDirectory <- Environment.CurrentDirectory
-          info.Arguments <- "--version") (TimeSpan.FromMinutes 30.)
-
-    processResult.OK
+    try
+        let processResult =
+            ExecProcessAndReturnMessages (fun info ->  
+              info.FileName <- commandName
+              info.WorkingDirectory <- Environment.CurrentDirectory
+              info.Arguments <- "--version") (TimeSpan.FromMinutes 30.)
+
+        processResult.OK
+    with _ -> false
 
 /// DotNet parameters
 type CommandParams = {