Error in debugging app on iphone device -

please below error not able debug app on device says permission denied...please help!

phasescriptexecution "run script" build/assistant.build/release-iphoneos/assistant.build/script-d5aa2ecc1261763800b909b0.sh cd /users/lharinathreddy/desktop/xcode/assistant setenv action build setenv ad_hoc_code_signing_allowed no setenv alternate_group staff setenv alternate_mode u+w,go-w,a+rx setenv alternate_owner lharinathreddy setenv always_search_user_paths no setenv apple_internal_developer_dir /appleinternal/developer setenv apple_internal_dir /appleinternal setenv apple_internal_documentation_dir /appleinternal/documentation setenv apple_internal_library_dir /appleinternal/library setenv apple_internal_tools /appleinternal/developer/tools setenv apply_rules_in_copy_files no setenv archs "armv6 armv7" setenv archs_standard_32_64_bit "armv6 armv7" setenv archs_standard_32_bit "armv6 armv7" setenv archs_universal_iphone_os armv7 setenv build_components "headers build" setenv build_dir /users/lharinathreddy/desktop/xcode/assistant/build setenv build_root /users/lharinathreddy/desktop/xcode/assistant/build setenv build_style release setenv build_variants normal setenv built_products_dir /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos setenv cache_root /var/folders/g2/g2pl3p1whikklxgginxcbu+++ti/-caches-/com.apple.xcode.501 setenv cchroot /var/folders/g2/g2pl3p1whikklxgginxcbu+++ti/-caches-/com.apple.xcode.501 setenv chmod /bin/chmod setenv chown /usr/sbin/chown setenv class_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/javaclasses setenv clean_precomps yes setenv clone_headers no setenv codesigning_folder_path /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos/assistant.app setenv code_signing_allowed yes setenv code_signing_required yes setenv code_sign_context_class xciphoneoscodesigncontext setenv code_sign_entitlements "~/desktop/xcode/assistant/entitlements.plist" setenv code_sign_identity "iphone developer" setenv command_mode legacy setenv composite_sdk_dirs /var/folders/g2/g2pl3p1whikklxgginxcbu+++ti/-caches-/com.apple.xcode.501/compositesdks setenv compress_png_files yes setenv configuration release setenv configuration_build_dir /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos setenv configuration_temp_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos setenv contents_folder_path assistant.app setenv copying_preserves_hfs_data no setenv copy_phase_strip yes setenv copy_resources_from_static_frameworks yes setenv cp /bin/cp setenv current_arch armv7 setenv current_variant normal setenv dead_code_stripping yes setenv debugging_symbols yes setenv debug_information_format dwarf-with-dsym setenv deployment_location no setenv deployment_postprocessing no setenv derived_files_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/derivedsources setenv derived_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/derivedsources setenv derived_sources_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/derivedsources setenv developer_applications_dir /developer/applications setenv developer_bin_dir /developer/usr/bin setenv developer_dir /developer setenv developer_frameworks_dir /developer/library/frameworks setenv developer_frameworks_dir_quoted "\"/developer/library/frameworks\"" setenv developer_library_dir /developer/library setenv developer_sdk_dir /developer/sdks setenv developer_tools_dir /developer/tools setenv developer_usr_dir /developer/usr setenv development_language english setenv documentation_folder_path assistant.app/english.lproj/documentation setenv do_header_scanning_in_jam no setenv dstroot /tmp/assistant.dst setenv dwarf_dsym_file_name assistant.app.dsym setenv dwarf_dsym_folder_path /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos setenv effective_platform_name -iphoneos setenv embedded_profile_name embedded.mobileprovision setenv enable_header_dependencies yes setenv enable_openmp_support no setenv entitlements_allowed yes setenv entitlements_required yes setenv excluded_installsrc_subdirectory_patterns ".svn .git cvs" setenv excluded_recursive_search_path_subdirectories "*.nib *.lproj *.framework *.gch (*) cvs .svn .git *.xcodeproj *.xcode *.pbproj *.pbxproj" setenv executables_folder_path assistant.app/executables setenv executable_folder_path assistant.app setenv executable_name assistant setenv executable_path assistant.app/assistant setenv file_list /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/objects/linkfilelist setenv fixed_files_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/fixedfiles setenv frameworks_folder_path assistant.app/frameworks setenv framework_flag_prefix -framework setenv framework_search_paths "\"/users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos\" " setenv framework_version setenv full_product_name assistant.app setenv gcc3_version 3.3 setenv gcc_c_language_standard c99 setenv gcc_inlines_are_private_extern yes setenv gcc_pfe_file_c_dialects "c objective-c c++ objective-c++" setenv gcc_precompile_prefix_header yes setenv gcc_prefix_header assistant_prefix.pch setenv gcc_symbols_private_extern yes setenv gcc_thumb_support yes setenv gcc_treat_warnings_as_errors no setenv gcc_version 4.2 setenv gcc_version_identifier __2 setenv gcc_warn_about_return_type yes setenv gcc_warn_unused_variable yes setenv generate_master_object_file no setenv generate_pkginfo_file yes setenv generate_profiling_code no setenv gid 20 setenv group staff setenv headermap_includes_flat_entries_for_target_being_built yes setenv headermap_includes_framework_entries_for_all_product_types yes setenv headermap_includes_nonpublic_nonprivate_headers yes setenv headermap_includes_project_headers yes setenv header_search_paths "\"/users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos/include\" " setenv iconv /usr/bin/iconv setenv infoplist_expand_build_settings yes setenv infoplist_file assistant-info.plist setenv infoplist_output_format binary setenv infoplist_path assistant.app/info.plist setenv infoplist_preprocess no setenv infostrings_path assistant.app/english.lproj/infoplist.strings setenv install_dir /tmp/assistant.dst/users/lharinathreddy/applications setenv install_group staff setenv install_mode_flag u+w,go-w,a+rx setenv install_owner lharinathreddy setenv install_path /users/lharinathreddy/applications setenv install_root /tmp/assistant.dst setenv iphoneos_deployment_target 4.2 setenv javac_default_flags "-j-xms64m -j-xx:newsize=4m -j-dfile.encoding=utf8" setenv java_app_stub /system/library/frameworks/javavm.framework/resources/macos/javaapplicationstub setenv java_archive_classes yes setenv java_archive_type jar setenv java_compiler /usr/bin/javac setenv java_folder_path assistant.app/java setenv java_framework_resources_dirs resources setenv java_jar_flags cv setenv java_source_subdir . setenv java_use_dependencies yes setenv java_zip_flags -urg setenv jikes_default_flags "+e +oldcso" setenv keep_private_externs no setenv ld_generate_map_file no setenv ld_map_file_path /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/assistant-linkmap-normal-armv7.txt setenv ld_openmp_flags -fopenmp setenv lex /developer/usr/bin/lex setenv library_flag_nospace yes setenv library_flag_prefix -l setenv library_search_paths "\"/users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos\" " setenv linker_displays_mangled_names no setenv link_file_list_normal_armv6 /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/objects-normal/armv6/assistant.linkfilelist setenv link_file_list_normal_armv7 /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/objects-normal/armv7/assistant.linkfilelist setenv link_with_standard_libraries yes setenv localized_resources_folder_path assistant.app/english.lproj setenv local_admin_apps_dir /applications/utilities setenv local_apps_dir /applications setenv local_developer_dir /library/developer setenv local_library_dir /library setenv mach_o_type mh_execute setenv mac_os_x_version_actual 1066 setenv mac_os_x_version_major 1060 setenv mac_os_x_version_minor 0606 setenv native_arch i386 setenv native_arch_32_bit i386 setenv native_arch_64_bit x86_64 setenv native_arch_actual x86_64 setenv no_common yes setenv object_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/objects setenv object_file_dir_normal /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/objects-normal setenv objroot /users/lharinathreddy/desktop/xcode/assistant/build setenv only_active_arch no setenv optimization_level 0 setenv os macos setenv osac /usr/bin/osacompile setenv other_cflags -dns_block_assertions=1 setenv other_cplusplusflags -dns_block_assertions=1 setenv package_type com.apple.package-type.wrapper.application setenv pascal_strings yes setenv path "/developer/platforms/iphoneos.platform/developer/usr/bin:/developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" setenv path_prefixes_excluded_from_header_dependencies "/usr/include /usr/local/include /system/library/frameworks /system/library/privateframeworks /developer/headers /developer/sdks /developer/platforms" setenv pbdevelopmentplist_path assistant.app/pbdevelopment.plist setenv pfe_file_c_dialects objective-c setenv pkginfo_file_path /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/pkginfo setenv pkginfo_path assistant.app/pkginfo setenv platform_developer_applications_dir /developer/platforms/iphoneos.platform/developer/applications setenv platform_developer_bin_dir /developer/platforms/iphoneos.platform/developer/usr/bin setenv platform_developer_library_dir /developer/platforms/iphoneos.platform/developer/library setenv platform_developer_sdk_dir /developer/platforms/iphoneos.platform/developer/sdks setenv platform_developer_tools_dir /developer/platforms/iphoneos.platform/developer/tools setenv platform_developer_usr_dir /developer/platforms/iphoneos.platform/developer/usr setenv platform_dir /developer/platforms/iphoneos.platform setenv platform_name iphoneos setenv platform_product_build_version 8c134 setenv plist_file_output_format binary setenv plugins_folder_path assistant.app/plugins setenv prebinding no setenv precomps_include_headers_from_built_products_dir yes setenv precomp_destination_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/prefixheaders setenv preserve_dead_code_inits_and_terms no setenv private_headers_folder_path assistant.app/privateheaders setenv product_name assistant setenv product_settings_path /users/lharinathreddy/desktop/xcode/assistant/assistant-info.plist setenv product_type com.apple.product-type.application setenv profiling_code no setenv project assistant setenv project_derived_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/derivedsources setenv project_dir /users/lharinathreddy/desktop/xcode/assistant setenv project_file_path /users/lharinathreddy/desktop/xcode/assistant/assistant.xcodeproj setenv project_name assistant setenv project_temp_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build setenv provisioning_profile_required yes setenv public_headers_folder_path assistant.app/headers setenv recursive_search_paths_follow_symlinks yes setenv remove_cvs_from_resources yes setenv remove_git_from_resources yes setenv remove_svn_from_resources yes setenv resource_rules_required yes setenv rez_collector_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/resourcemanagerresources setenv rez_objects_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/resourcemanagerresources/objects setenv rez_search_paths "\"/users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos\" " setenv run_clang_static_analyzer no setenv scan_all_source_files_for_includes no setenv scripts_folder_path assistant.app/scripts setenv script_input_file_count 0 setenv script_output_file_count 0 setenv sdkroot /developer/platforms/iphoneos.platform/developer/sdks/iphoneos4.2.sdk setenv sdk_dir /developer/platforms/iphoneos.platform/developer/sdks/iphoneos4.2.sdk setenv sdk_name iphoneos4.2 setenv sed /usr/bin/sed setenv separate_strip no setenv separate_symbol_edit no setenv set_dir_mode_owner_group yes setenv set_file_mode_owner_group no setenv shallow_bundle yes setenv shared_derived_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos/derivedsources setenv shared_frameworks_folder_path assistant.app/sharedframeworks setenv shared_precomps_dir /var/folders/g2/g2pl3p1whikklxgginxcbu+++ti/-caches-/com.apple.xcode.501/sharedprecompiledheaders setenv shared_support_folder_path assistant.app/sharedsupport setenv skip_install yes setenv source_root /users/lharinathreddy/desktop/xcode/assistant setenv srcroot /users/lharinathreddy/desktop/xcode/assistant setenv standard_c_plus_plus_library_type dynamic setenv strings_file_output_encoding binary setenv strip_installed_product yes setenv strip_style setenv supported_device_families 1,2 setenv symbol_repository_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/symbolrepositories setenv symroot /users/lharinathreddy/desktop/xcode/assistant/build setenv system_admin_apps_dir /applications/utilities setenv system_apps_dir /applications setenv system_core_services_dir /system/library/coreservices setenv system_demos_dir /applications/extras setenv system_developer_apps_dir /developer/applications setenv system_developer_bin_dir /developer/usr/bin setenv system_developer_demos_dir "/developer/applications/utilities/built examples" setenv system_developer_dir /developer setenv system_developer_doc_dir "/developer/adc reference library" setenv system_developer_graphics_tools_dir "/developer/applications/graphics tools" setenv system_developer_java_tools_dir "/developer/applications/java tools" setenv system_developer_performance_tools_dir "/developer/applications/performance tools" setenv system_developer_releasenotes_dir "/developer/adc reference library/releasenotes" setenv system_developer_tools /developer/tools setenv system_developer_tools_doc_dir "/developer/adc reference library/documentation/developertools" setenv system_developer_tools_releasenotes_dir "/developer/adc reference library/releasenotes/developertools" setenv system_developer_usr_dir /developer/usr setenv system_developer_utilities_dir /developer/applications/utilities setenv system_documentation_dir /library/documentation setenv system_library_dir /system/library setenv targeted_device_family 1 setenv targetname assistant setenv target_build_dir /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos setenv target_name assistant setenv target_temp_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build setenv temp_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build setenv temp_files_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build setenv temp_file_dir /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build setenv temp_root /users/lharinathreddy/desktop/xcode/assistant/build setenv uid 501 setenv unlocalized_resources_folder_path assistant.app setenv unstripped_product no setenv user lharinathreddy setenv user_apps_dir /users/lharinathreddy/applications setenv user_library_dir /users/lharinathreddy/library setenv use_dynamic_no_pic yes setenv use_headermap yes setenv use_header_symlinks no setenv validate_product yes setenv valid_archs "armv6 armv7" setenv verbose_pbxcp no setenv versionplist_path assistant.app/version.plist setenv version_info_builder lharinathreddy setenv version_info_file assistant_vers.c setenv version_info_string "\"@(#)program:assistant  project:assistant-\"" setenv wrapper_extension app setenv wrapper_name assistant.app setenv wrapper_suffix .app setenv xcode_app_support_dir /developer/library/xcode setenv xcode_product_build_version 10m2423 setenv xcode_version_actual 0325 setenv xcode_version_major 0300 setenv xcode_version_minor 0320 setenv yacc /developer/usr/bin/yacc setenv _real_sdkroot iphoneos4.0 /bin/sh -c /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/script-d5aa2ecc1261763800b909b0.sh  /users/lharinathreddy/desktop/xcode/assistant/build/assistant.build/release-iphoneos/assistant.build/script-d5aa2ecc1261763800b909b0.sh: line 4: /developer/iphoneentitlements401/gen_entitlements.py: permission denied /users/lharinathreddy/desktop/xcode/assistant/build/release-iphoneos/assistant.app/assistant.xcent: cannot read entitlement dat 

try quitting xcode, deleting build folder, restarting xcode , rebuild.

if doesn't fix it, try restarting device and/or mac too.