Android studio hangs with no reason -

i have worked on project weeks on android studio few hours ago android studio hangs no abvious reason. restart it, restart pc, did "invalidate caches / restart". search solutions on google no luck specially don't know what's reason.

when open android studio open project after few seconds hangs if don't @ all.

@user4847410

this idea.log

2015-06-29 17:48:54,801 [ 0] info - #com.intellij.idea.main - ------------------------------------------------------ ide started ------------------------------------------------------ 2015-06-29 17:48:54,856 [ 55] info - #com.intellij.idea.main - ide: android studio (build #ai-141.1980579, 03 jun 2015 00:00) 2015-06-29 17:48:54,856 [ 55] info - #com.intellij.idea.main - os: windows 7 (6.1, amd64) 2015-06-29 17:48:54,856 [ 55] info - #com.intellij.idea.main - jre: 1.8.0_45-b15 (oracle corporation) 2015-06-29 17:48:54,856 [ 55] info - #com.intellij.idea.main - jvm: 25.45-b02 (java hotspot(tm) 64-bit server vm) 2015-06-29 17:48:54,858 [ 57] info - #com.intellij.idea.main - jvm args: -xms128m -xmx750m -xx:maxpermsize=350m -xx:reservedcodecachesize=225m -xx:+useconcmarksweepgc -xx:softreflrupolicymspermb=50 -ea -djna.nosys=true -djna.boot.library.path= -djna.debug_load=true -djna.debug_load.jna=true -dsun.io.usecanoncaches=false -djava.net.preferipv4stack=true -didea.paths.selector=androidstudio1.2 -didea.platform.prefix=androidstudio -djb.vmoptions=c:\program files\android\android studio\bin\studio64.exe.vmoptions -xbootclasspath/a:c:\program files\android\android studio\lib\boot.jar -didea.jre.check=false 2015-06-29 17:48:55,221 [ 420] info - #com.intellij.idea.main - jna library loaded (64-bit) in 363 ms 2015-06-29 17:48:55,223 [ 422] info - penapi.util.io.win32.ideawin32 - native filesystem windows operational 2015-06-29 17:48:55,223 [ 422] info - #com.intellij.idea.main - using "focuskiller" library prevent focus stealing. 2015-06-29 17:48:56,355 [ 1554] info - llij.ide.plugins.pluginmanager - 25 plugins initialized in 476 ms 2015-06-29 17:48:56,358 [ 1557] info - llij.ide.plugins.pluginmanager - loaded bundled plugins: android support (10.1.2.2), cvs integration (11), copyright (8.1), coverage, editorconfig (1.0), git integration (8.1), github, google cloud testing (1.0), google cloud tools android studio (0.2.8), google login (1.0), gradle, groovy (9.0), i18n java, idea core, intellilang (8.0), junit (1.0), java bytecode decompiler (0.1), javafx (1.0), maven integration, properties support, subversion integration (1.1), task management (1.0), terminal (0.1), testng-j (8.0), hg4idea (10.0) 2015-06-29 17:48:56,866 [ 2065] info - ellij.util.io.pagedfilestorage - lower=100; upper=200; buffer=10; max=739246080 2015-06-29 17:48:56,904 [ 2103] info - api.vfs.impl.local.filewatcher - starting file watcher: c:\program files\android\android studio\bin\fsnotifier.exe 2015-06-29 17:48:56,912 [ 2111] info - api.vfs.impl.local.filewatcher - native file watcher operational. 2015-06-29 17:48:57,287 [ 2486] info - lij.diagnostic.debuglogmanager - set debug following categories: [] 2015-06-29 17:48:57,487 [ 2686] info - org.jetbrains.io.builtinserver - cannot bind our default range, so, try bind free port 2015-06-29 17:48:57,781 [ 2980] info - rains.ide.builtinservermanager - built-in server started, port 58491 2015-06-29 17:48:57,986 [ 3185] info - testng runner - create testng template configuration 2015-06-29 17:48:58,029 [ 3228] info - ellij.project.impl.projectimpl - 20 project components initialized in 345 ms 2015-06-29 17:48:58,030 [ 3229] info - le.impl.modulemanagercomponent - 0 module(s) loaded in 0 ms 2015-06-29 17:48:58,487 [ 3686] info - pl.stores.applicationstoreimpl - 83 application components initialized in 2111 ms 2015-06-29 17:48:58,509 [ 3708] info - .intellij.idea.ideaapplication - app initialization took 4215 ms 2015-06-29 17:48:59,346 [ 4545] info - testng runner - create testng template configuration 2015-06-29 17:48:59,558 [ 4757] info - ellij.project.impl.projectimpl - 136 project components initialized in 602 ms 2015-06-29 17:48:59,698 [ 4897] info - le.impl.modulemanagercomponent - 2 module(s) loaded in 139 ms 2015-06-29 17:49:02,318 [ 7517] info - indexing.unindexedfilesupdater - indexable files iterated in 2051 ms 2015-06-29 17:49:03,847 [ 9046] info - tartup.impl.startupmanagerimpl - e:\android_studio_workspace\iraqiexc.idea\misc.xml case-sensitivity: false 2015-06-29 17:49:04,083 [ 9282] info - indexing.unindexedfilesupdater - indexable files iterated in 41 ms 2015-06-29 17:49:04,263 [ 9462] info - lij.tasks.impl.taskmanagerimpl - updating issues cache (every 20 min) 2015-06-29 17:49:04,563 [ 9762] info - compilerworkspaceconfiguration - available processors: 8 2015-06-29 17:49:05,113 [ 10312] info - nject.config.xpathsupportproxy - xpath support not available 2015-06-29 17:49:05,164 [ 10363] info - attrs.attributedefinitionsimpl - found tag unknown parent: androidmanifest.androidmanifestsupportsinput 2015-06-29 17:49:05,164 [ 10363] info - attrs.attributedefinitionsimpl - found tag unknown parent: androidmanifest.androidmanifestcompatiblescreens 2015-06-29 17:49:05,411 [ 10610] info - tor.impl.fileeditormanagerimpl - project opening took 6491 ms