链接器错误未定义符号

Question

I use this library to download files. But when I compile my project the linker throw me an error. The architecture is armv7.

The origin of this error is because I use:

[[BDMultiDownloader shared] queueRequest:[urlFolder stringByAppendingString:video] completion:^(NSData* data){
                [data writeToFile:file atomically:TRUE];
            }];

Thanks for the help!

Answer 1

When you added the files to your project, was the target you are building ticked?

Select the BDMultiDownloader.m file in the project navigator in the left-hand sidebar, then select the file inspector in the right-hand sidebar. Make sure that the target membership includes the target you are building.