Error trying to copy from bundle to documents directory

Question

I have added an sqlite file into my application and is trying to copy it from the bundle to the documents directory. I have added the sqlite to target app as well. Following is the code I use to copy the file:

NSString *destination = [[[Utils applicationDocumentsDirectory] absoluteString] stringByAppendingString:@"myapp.sqlite"]; NSFileManager *fileManager = [NSFileManager defaultManager]; if (![fileManager fileExistsAtPath:destination]) { NSString *source = [[NSBundle mainBundle] pathForResource:@"myapp" ofType:@"sqlite"]; NSError *error = nil; [fileManager copyItemAtPath:source toPath:destination error:&error]; if (error) { // } }

Code for [Utils applicationDocumentsDirectory]:

+ (NSURL *)applicationDocumentsDirectory { return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; }

But when this code is executed, I get the following error:

Error Domain=NSCocoaErrorDomain Code=4 "The file “myapp.sqlite” doesn’t exist." UserInfo={NSSourceFilePathErrorKey=/Users/harikrishnant/Library/Developer/CoreSimulator/Devices/8E531314-F1AE-417F-8E99-7AA92967CDC9/data/Containers/Bundle/Application/0A710929-475D-457C-8D2D-C2F2BBEB6B92/myapp.app/myapp.sqlite, NSUserStringVariant=( Copy ), NSDestinationFilePath=file:///Users/harikrishnant/Library/Developer/CoreSimulator/Devices/8E531314-F1AE-417F-8E99-7AA92967CDC9/data/Containers/Data/Application/13B22E15-D00C-433C-9F02-014B1F73D183/Documents/myapp.sqlite, NSFilePath=/Users/harikrishnant/Library/Developer/CoreSimulator/Devices/8E531314-F1AE-417F-8E99-7AA92967CDC9/data/Containers/Bundle/Application/0A710929-475D-457C-8D2D-C2F2BBEB6B92/myapp.app/myapp.sqlite, NSUnderlyingError=0x7faffe1b5cf0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

I checked the following path using terminal and figured out that the sqlite file actually exists in the app bundle:

/Users/harikrishnant/Library/Developer/CoreSimulator/Devices/8E531314-F1AE-417F-8E99-7AA92967CDC9/data/Containers/Bundle/Application/0A710929-475D-457C-8D2D-C2F2BBEB6B92/myapp.app/myapp.sqlite

But still I am getting this error. I tried everything. I even cleaned the build folder and reinstalled the application, it still didn't work. What can be the problem here? How to solve it?

Update your question with the code for Utils applicationDocumentsDirectory. — rmaddy
– rmaddy, Commented Mar 26, 2016 at 15:05
Your code to get the Documents URL is correct. But I suggest you call path and not absoluteString to convert the NSURL to the path string. — rmaddy
– rmaddy, Commented Mar 26, 2016 at 18:00
@rmaddy That Worked!!!! But can you please explain what difference does it make between absoluteString and path? — Harikrishnan
– Harikrishnan, Commented Mar 26, 2016 at 18:15
You also need to change stringByAppendingString: with stringByAppendingPathComponent:. — rmaddy
– rmaddy, Commented Mar 26, 2016 at 18:36

rmaddy · Accepted Answer · 2016-03-26 18:50:00Z

Your code is almost correct. It has two flaws with this line:

NSString *destination = [[[Utils applicationDocumentsDirectory] absoluteString] stringByAppendingString:@"myapp.sqlite"];

The use of absoluteString is incorrect. This gives a file URL in the form file://path/to/Documents/. You need to use the path method to get a file path (not file URL) form the NSURL.

Then you need to properly append the filename to the path. You need to use stringByAppendingPathComponent: instead of stringByAppendingString:.

That line should be:

NSString *destination = [[[Utils applicationDocumentsDirectory] path] stringByAppendingPathComponent:@"myapp.sqlite"];

Vatsal Shukla · Accepted Answer · 2016-03-26 08:55:38Z

I use bellow code to copy my SQLite DB from Application Bundle to Document Directory.
NOTE 'Database' is Folder name. 'datasource' is my database name and it's extension is 'db'

-(void)saveDatabase{ //put bundle database to DocumentDirectory NSLog(@"%@",[self databasePath]); //Create Path For Destination NSString* path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]; path = [path stringByAppendingPathComponent:@"Database"]; BOOL isExists=[[NSFileManager defaultManager]fileExistsAtPath:path]; if(!isExists){ NSError* error; BOOL isCreated = [[NSFileManager defaultManager]createDirectoryAtPath:path withIntermediateDirectories:NO attributes:nil error:&error]; if(isCreated){ path = [path stringByAppendingPathComponent:@"Datasource"]; path = [path stringByAppendingPathExtension:@"db"]; isExists = [[NSFileManager defaultManager]fileExistsAtPath:path]; if(!isExists){ NSError* dbError; NSString* bundle = [[NSBundle mainBundle]pathForResource:@"Datasource" ofType:@"db"]; isCreated = [[NSFileManager defaultManager]copyItemAtPath:bundle toPath:path error:&dbError]; if(isCreated){ NSLog(@"DatabasePath %@",path); }else{ NSLog(@"ErrorCopying DB file %@",dbError.localizedDescription); } }else{ } }else{ NSLog(@"Error While Creating Database Directory:->%@",error.localizedDescription); } } } - (NSString*)databasePath{ NSString* path = [self documentDirectory]; path = [path stringByAppendingPathComponent:@"Database"]; path = [path stringByAppendingPathComponent:@"Datasource"]; path = [path stringByAppendingPathExtension:@"db"]; return path; } - (NSString*)documentDirectory{ return [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"]; }

No, do not use this code. That is not the proper way to get a reference to the Documents folder. On top of that, this code's logic is very bad and does not work properly.
@rmaddy I didn't really follow the logic, but the code to get the path actually helped me in solving my issue.
This code has serious flaws. It directory exists but the file doesn't, it doesn't copy anything. And using NSHomeDirectory() and appending "Documents" is the wrong way to get a reference to the Documents folder.
@rmaddy, With Respect, Sir, can you show me proper way to access "Document" Directory?
The code posted in the question is the proper way to get a reference to the Documents folder.

Jelly · Accepted Answer · 2016-03-26 09:07:26Z

Make sure your file is listed in Build Phases -> Copy Bundle Resources in the target you use. Try deleting Derived data. If still does not work go to Derived data and check the file using Finder.

Collectives™ on Stack Overflow

Error trying to copy from bundle to documents directory

3 Answers 3

Comments

5 Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

5 Comments

Comments

Related