ios - Assertion failure in -[AppDelegate copyDatabaseIfNeeded], -


my database working 1 hour before. every thing worked finem issues now.

assertion failure in -[appdelegate copydatabaseifneeded],

i checking on path database not copy. checked target membership of sqlite file.

- (nsstring *)getdbpath {     nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory , nsuserdomainmask, yes);     nsstring *documentsdir = [paths objectatindex:0];     return [documentsdir stringbyappendingpathcomponent:@"boom.sqlite"]; }  - (void) copydatabaseifneeded {     //using nsfilemanager can perform many file system operations.     nsfilemanager *filemanager = [nsfilemanager defaultmanager];     nserror *error;     nsstring *dbpath = [self getdbpath];         nslog(@"%@",dbpath);      bool success = [filemanager fileexistsatpath:dbpath];      if(!success) {         nsstring *defaultdbpath = [[[nsbundle mainbundle] resourcepath] stringbyappendingpathcomponent:@"boom.sqlite"];         success = [filemanager copyitematpath:defaultdbpath topath:dbpath error:&error];         if (!success)             nsassert1(0, @"failed create writable database file message '%@'.", [error localizeddescription]);     } }

but error:

 *** terminating app due uncaught exception 'nsinternalinconsistencyexception', reason: 'failed create writable database file message 'the operation couldn’t completed. (cocoa error 260.)'.' *** first throw call stack: (     0   corefoundation                      0x000000010494b3f5 __exceptionpreprocess + 165     1   libobjc.a.dylib                     0x00000001045e4bb7 objc_exception_throw + 45     2   corefoundation                      0x000000010494b25a +[nsexception raise:format:arguments:] + 106     3   foundation                          0x000000010420228f -[nsassertionhandler handlefailureinmethod:object:file:linenumber:description:] + 195     4   boomagift                           0x000000010286dce7 -[appdelegate copydatabaseifneeded] + 663     5   boomagift                           0x000000010286d8c0 -[appdelegate application:didfinishlaunchingwithoptions:] + 800     6   uikit                               0x0000000102a825a5 -[uiapplication _handledelegatecallbackswithoptions:issuspended:restorestate:] + 234     7   uikit                               0x0000000102a830ec -[uiapplication _callinitializationdelegatesformainscene:transitioncontext:] + 2463     8   uikit                               0x0000000102a85e5c -[uiapplication _runwithmainscene:transitioncontext:completion:] + 1350     9   uikit                               0x0000000102a84d22 -[uiapplication workspacedidendtransaction:] + 179     10  frontboardservices                  0x00000001059aa2a3 __31-[fbsserialqueue performasync:]_block_invoke + 16     11  corefoundation                      0x0000000104880abc __cfrunloop_is_calling_out_to_a_block__ + 12     12  corefoundation                      0x0000000104876805 __cfrunloopdoblocks + 341     13  corefoundation                      0x00000001048765c5 __cfrunlooprun + 2389     14  corefoundation                      0x0000000104875a06 cfrunlooprunspecific + 470     15  uikit                               0x0000000102a84799 -[uiapplication _run] + 413     16  uikit                               0x0000000102a87550 uiapplicationmain + 1282     17  boomagift                           0x000000010289fd53 main + 115     18  libdyld.dylib                       0x00000001053cf145 start + 1     19  ???                                 0x0000000000000001 0x0 + 1 ) libc++abi.dylib: terminating uncaught exception of type nsexception


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