Cannot download an app on my Android tablet I thought if I deleted the internal SD card info it would help and I have downloaded apps since but the Facebook messenger app says application cannot be installed in the default installation location error 20 troubleshoot and I have plenty of storage space.
I had deleted everything from the SD card, and it popped out asking me to mount the card and put a new one in. I just put in the old empty card and then I disabled play store and enabled it. After that I moved so many apps to the card I have a lot of space and the play store works perfect again – but this took me 4 hours to figure out! Hope this can help someone else oneday!