diff --git a/Implab/Implab.csproj b/Implab/Implab.csproj
--- a/Implab/Implab.csproj
+++ b/Implab/Implab.csproj
@@ -7,8 +7,6 @@
     <OutputType>Library</OutputType>
     <RootNamespace>Implab</RootNamespace>
     <AssemblyName>Implab</AssemblyName>
-    <ProductVersion>8.0.30703</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/Implab/Safe.cs b/Implab/Safe.cs
--- a/Implab/Safe.cs
+++ b/Implab/Safe.cs
@@ -58,6 +58,21 @@ namespace Implab
         }
 
         [DebuggerStepThrough]
+        public static IPromise<T> InvokePromise<T>(Action action) {
+            ArgumentNotNull(action, "action");
+
+            var p = new Promise<object>();
+            try {
+                action();
+                p.Resolve();
+            } catch (Exception err) {
+                p.Reject(err);
+            }
+
+            return p;
+        }
+
+        [DebuggerStepThrough]
         public static IPromise<T> InvokePromise<T>(Func<IPromise<T>> action) {
             ArgumentNotNull(action, "action");