xcode crashes when I try to open any project -

xcode crashes when trying open project (.xcodeproj) file. crash report saying

xcode quit unexpectedly while using libjp2.dylib plug-in

here more details

process: xcode [733]

path: /applications/xcode.app/contents/macos/xcode

identifier: com.apple.dt.xcode

version: 6.0.1 (6528)

build info: ideframeworks-6528000000000000~2

app item id: 497799835

app external id: 712682811

code type: x86-64 (native)

parent process: launchd [161]

responsible: xcode [733]

user id: 506

plugin path:
/system/library/frameworks/imageio.framework/versions/a/resources/libjp2.dylib

plugin identifier: libjp2.dylib

plugin version: ??? (1044)

date/time: 2015-05-08 10:34:45.103 +0530

os version: mac os x 10.9.5 (13f34)

report version: 11

anonymous uuid: 57f21d56-d9b6-5a40-6209-07ecf66dd709

crashed thread: 0 dispatch queue: com.apple.main-thread

exception type: exc_bad_access (code signature invalid)

exception codes: 0x0000000000000032, 0x00007fff764f5018

would please me ?