diff --git a/Manatee/Plugin/Anything/AnythingLocate.hs b/Manatee/Plugin/Anything/AnythingLocate.hs
--- a/Manatee/Plugin/Anything/AnythingLocate.hs
+++ b/Manatee/Plugin/Anything/AnythingLocate.hs
@@ -76,17 +76,17 @@
 -- | Search local files.
 anythingLocateSearch :: Bool -> AnythingInput -> Client -> IO [FileInfo]
 anythingLocateSearch filterDir filepath _ = do
-    home <- getEnv "HOME"
-    let -- Expand '~' with HOME value. 
-        path = if ("~" :: String) `isPrefixOf` filepath
-                  then home ++ drop (length ("~" :: String)) filepath
-                  else filepath
-        -- Try to get upper directory of current file path.
-        upperDir | hasTrailingPathSeparator path
-                     = fromString path
-                 | otherwise
-                     = fromString $ getUpperDirectory path
-    anythingLocateGetFileInfos upperDir filterDir
+  home <- getEnv "HOME"
+  let -- Expand '~' with HOME value. 
+      path = if ("~" :: String) `isPrefixOf` filepath
+                then home ++ drop (length ("~" :: String)) filepath
+                else filepath
+      -- Try to get upper directory of current file path.
+      upperDir | hasTrailingPathSeparator path
+                   = fromString path
+               | otherwise
+                   = fromString $ getUpperDirectory path
+  anythingLocateGetFileInfos upperDir filterDir
 
 -- | Get FileInfo.
 anythingLocateGetFileInfos :: ByteString -> Bool -> IO [FileInfo]
diff --git a/Manatee/Plugin/Anything/AnythingView.hs b/Manatee/Plugin/Anything/AnythingView.hs
--- a/Manatee/Plugin/Anything/AnythingView.hs
+++ b/Manatee/Plugin/Anything/AnythingView.hs
@@ -17,6 +17,7 @@
 -- along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 {-# LANGUAGE ExistentialQuantification, TypeSynonymInstances, FlexibleInstances, OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
 module Manatee.Plugin.Anything.AnythingView where
 
 import Control.Applicative hiding (empty)
@@ -44,6 +45,7 @@
 import Manatee.Toolkit.Gtk.ModelView
 
 import qualified Data.Map as M
+import qualified Control.Exception as Exc
 
 -- | The max limit of rows in candidate view.
 anythingCandidateViewLimit :: Int
@@ -310,7 +312,7 @@
     >?>= \ AnythingCandidateView {acavTreeView = treeView} -> do
       treeViewY <- rectangleY <$> widgetGetAllocation treeView
       vAdjust   <- scrolledWindowGetVAdjustment $ avCandidateScrolledWindow view
-      adjustmentSetValue vAdjust (integralToDouble treeViewY)
+      adjustmentSetValue vAdjust (i2d treeViewY)
 
 -- | Focus default candidate.
 anythingViewFocusFirstCandidate :: AnythingView -> Bool -> IO ()           
@@ -410,8 +412,8 @@
         -- Transform treeView coordinate to avCandidateBox coordinate.
         widgetTranslateCoordinates treeView (avCandidateBox view) cx cy 
     >?>= \(_, by) -> do
-      let candidateY    = integralToDouble by
-          candidateH    = integralToDouble ch
+      let candidateY    = i2d by
+          candidateH    = i2d ch
           scrolledWindow = avCandidateScrolledWindow view
 
       -- Get vertical adjustment information. 
@@ -428,7 +430,7 @@
            -- make sure header can scroll to visible area of screen.
            atFirstToplevelNode <- treeViewAtFirstToplevelNode treeView
            adjustValue <- if atFirstToplevelNode 
-                            then integralToDouble <$> treeViewGetHeaderHeight treeView
+                            then i2d <$> treeViewGetHeaderHeight treeView
                             else return 0
            adjustmentSetValue vAdjust (candidateY - adjustValue)
          else 
@@ -621,9 +623,25 @@
     anythingViewRunCommand True
 
 -- | Get match candidate for current input.
-anythingViewGetMatches :: AnythingInput -> Client -> AnythingSearch -> AnythingFilterRule -> IO [AnythingCandidateWrap]
-anythingViewGetMatches path client (AnythingSearch searchFun) filterRule = do
-  candidates <- map AnythingCandidateWrap <$> searchFun path client
+anythingViewGetMatches :: AnythingName
+                       -> AnythingInput 
+                       -> Client 
+                       -> AnythingSearch 
+                       -> AnythingFilterRule 
+                       -> IO [AnythingCandidateWrap]
+anythingViewGetMatches name path client (AnythingSearch searchFun) filterRule = do
+  candidates <- 
+      -- Protect search algorithm won't crash.
+      -- If any unexpected exception throw, 
+      -- just return [] to hide current search candidate.
+      -- Avoid one search exception crash all process.
+      Exc.catch 
+               (map AnythingCandidateWrap <$> searchFun path client)
+               (\ (_ :: Exc.IOException) -> do
+                    putStrLn $ "anythingViewGetMatches: Catch exception when search candidate for `" 
+                                 ++ name
+                                 ++ "` please report this bug to author!"
+                    return [])
   return $ filter (\ (AnythingCandidateWrap x) -> filterRule path (candidateFilterName x)) candidates
   
 -- | Output completion candidates on TreeView.
@@ -657,7 +675,7 @@
             getMatches = do
               -- Start spinner animation.
               titleWidgetStart (acavTitleWidget candidateView)
-              anythingViewGetMatches path client searchFun filterRule
+              anythingViewGetMatches name path client searchFun filterRule
             -- Update UI after candidates calculate finished. 
             setCandidates name cacheTVar candidates = do
               -- Stop spinner animation.
diff --git a/manatee-anything.cabal b/manatee-anything.cabal
--- a/manatee-anything.cabal
+++ b/manatee-anything.cabal
@@ -1,5 +1,5 @@
 name:			manatee-anything
-version:		0.0.1
+version:		0.0.2
 Cabal-Version:	>= 1.6
 license:		GPL-3
 license-file:	LICENSE
@@ -20,7 +20,7 @@
   
 Library
      build-depends: base >= 4 && < 5, gtk >= 0.12.0, containers >= 0.3.0.0, text >= 0.7.1.0,
-                    gio >= 0.12.0, filepath >= 1.1.0.3, manatee-core >= 0.0.1, dbus-client >= 0.3 && < 0.4,
+                    gio >= 0.12.0, filepath >= 1.1.0.3, manatee-core >= 0.0.2, dbus-client >= 0.3 && < 0.4,
                     network >= 2.2.1.5, utf8-string >= 0.3.4, proc >= 0.0.8, mtl >= 1.1.0.2, stm >= 2.1.2.0,
                     unix >= 2.4.0.0, regex-tdfa >= 1.1.2, bytestring, GoogleSuggest >= 0.0.3, dataenc,
                     dbus-core, split