Modpack won't open :'( Please help

[ImiPieEth]

Hey Guys..

 

I was just playing yesterday with the tekkit modpack and after an hour later all the blocks became white so i decided to restart the modpack. When i opened the launcher and clicked "Play" on the Tekkit modpack, an error appeared:

 

Error installing the following pack: Tekkit

 

An error occurred while attempting to delete 'C:UsersXDAppdataRoaming.minecraftmodpacksmodsappeng-rv14-finale3-mc16x.jar' from the cache:

 

Please check your system settings

 

So guys... If i'm in the wrong thread please tell me I'm new here. And tell me if where i should post this. Thanks

[Kalbintion]

Not sure if this section permits posts like this but failure to delete files indicates something still has it open, this is often the case with antivirus or other security applications that scan files. Attempt to manually delete the file and windows should complain about failing to delete it because of some program (it should say which) has it still open. Once you know what still has it kept open, you can add an exception to the .minecraft folder so it wont have this issue again in the future. A reboot will usually temporarily fix this issue btw.

[ImiPieEth]

I rebooted it too :/ And the file is still like that... So i have to close my antivirus then?

[Kalbintion]

Your antivirus is probably to blame for this, and rebooting may not fix the issue depending on what your antivirus is and what types of protection it offers. from the sounds of it, your antivirus software has real-time scanning of files that are opened or touched by another application, and in this case is unable to close its handle on that particular file before the launcher attempts to delete it. Disabling your antivirus and trying again can be a method to see if the antivirus is for sure to blame, but this isn't a recommended long-term solution and an exception added to your antivirus would be a better bet.