objective-c - NSInvalidArgumentException [NSDictionary initWithObjects:forKeys:]: count of objects (0) differs from count of keys (1)

Question

Got the error NSInvalidArgumentException [NSDictionary initWithObjects:forKeys:]: count of objects (0) differs from count of keys (1). I used following code for

NSString *errorDesc = nil;
SBJsonParser *parser =  [[SBJsonParser alloc] init];
NSDictionary *jsonDictionary = [parser objectWithString:responseData];

paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES);
documentsPath = [paths objectAtIndex:0];
plistPath = [documentsPath stringByAppendingPathComponent:@"json_keys.plist"];

NSDictionary *plistDict = [NSDictionary dictionaryWithObjects: [NSArray arrayWithObjects:jsonDictionary, nil] forKeys:[NSArray arrayWithObjects: @"json_keys",  nil]];
NSData *plistData = [NSPropertyListSerialization dataFromPropertyList:plistDict format:NSPropertyListXMLFormat_v1_0 errorDescription:&errorDesc];
if (plistData)
{
    [plistData writeToFile:plistPath atomically:YES];
}
else
{
    NSLog(@"Error in saveData: %@", errorDesc);
    [errorDesc release];
}