App Store apps do not install properly on a fresh install of High Sierra on internal SSD or HDD

No probs!

You guys rock because you all found a fix way before I could!

I'll update the report I wrote to close the matter off.

There are more clues in the code (which is for Catalina or later) like sanity checking post update being off by default there with an option to switch it on, almost like a tentative step to bring back features that were in High Sierra but perhaps didn't work quite right and may be forcing Apple to dance around them in how they generate updates.

This stuff is hard. So Kudos too to the Apple engineers for fixing all this. They or their predecessors were also probably under the cosh to put this new feature into the OS back in the day and perhaps were forced to rush it out without enough testing.

That is never good for a background update mechanism as once the client code is out there you can never correct all of it.

Hi,

I didn't do anything and the problem is solved today, I tried to open the apps that were not opening and they all worked fine.

I just hope it won't happen again if I restart my laptop, tbh I'm afraid to try hahaha.

I don't really get it. Is it supposed to work without doing anything or am I supposed to delete a file? I still can't download any apps off the App Store so I'm guessing it doesn't magically work again. Maybe I should update to the latest version of High Sierra. I've been staying away from it since upgrading used to only make it worse. So is it safe to upgrade or should I delete the valid.sqlite3 file?

Well, I just tried a fresh install of High Sierra (for like the 8th), and all my Application finally work. Clearly I choose to take the leap to upgrade my 2011 MBP at the absolute worst time lol. What a wild ride!

one question though. So does this mean that apps obtained from the MAS are required to periodically “phone home” to function? How does one use Apple software on a Mac that might go months with no internet connection?

Sorry if this is a silly question. I only now am leaving Snow Leopard behind, and a lot of the new MAS procedures are new to me.

Three weeks ago, I upgraded my iMac (mid 2011) to High Sierra and am experiencing the same issues with Apps from the App Store no longer working. I have read through all 29 pages of this thread and although I do not know the difference between a SSD and HDD, I do understand that based on the diligent research of several individuals commenting here, a solution to the "code" causing the problem was identified and supposedly Apple has pushed an update to the end users to correct the problem.

Not so good for me - I am still having the exact same issue.

I have restarted my computer, gone to the App Store and downloaded/installed the app (which it does actually download and install) but the same issues occurs - it bounces once in the try and then quits.

Is there something I am missing - something else I am supposed to do in order to have this situation corrected on my computer?

I'm not an engineer nor technical regarding most of the computer language used on this thread but I can follow directions if someone could help me and would be extremely grateful!

FYI.....FrancoisQC......I just tried the Apps again and for whatever reason, they are now working! Not real sure why or how but am certainly very happy that they now work.

I appreciate your time and helping me to pull the files - maybe there is something in there (you understand) that might shed some more light on this issue. For now I feel pretty good that I am back in business!

I have one other question if you have the time. My iMac is 27" - Mid 2011, 2.7 Ghz, Intel Core i5, 4 GB, 1333 MHz DDR3 with 1 TB SATA disk. I updated to High Sierra 3 weeks ago in order to install an App where I could (don't laugh), remotely dial into my 86 yr old Mother's Macbook Air and help her when she has issues with her email and such (I live out west and she on the east coast). The App I wanted to download required version 10.13.6 or higher OS, which I did not have at that time. When I upgraded my mac to High Sierra 10.13.6, I received a message (on the Apple website) that this was the highest level OS I could upgrade my Mac.

Here is my question, I have 4 memory slots and only 2 are being used. Would adding 4 more gigs to this mac (2 in each open slot) allow me to continue to upgrade to other OS or would I need to upgrade the processor, and other internal stuff....and would it be worth the investment?

Thanks again!

To AltaPowder (I hope the pow is good!): no matter how much you boost your iMac 2011, you won't be able to install anything higher than High Sierra. That is the rule Apple is imposing on this hardware.

FrancoisQC - Thanks again for helping me out with the Apps issue. Mac and apps are running great! And, also the knowledge about this particular hardware...(disappointed on that front needless to say).

(The base is getting better but more storms required for the really good powder :-)).

Please keep us updated when the Apple support get back to you.

That's disappointing! I hope they don't just ignore us. High Sierra is not that old OS to stop supporting it.

Tried a full erase and install of High Sierra, no help.

I am having the exact same issue. Did a fresh install of High Sierra on a mid 2011 27" iMac, with an internal SSD.

Please keep me posted on a fix.

Thanks

But since High Sierra was released I have always formatted the SSD as APFS instead of Mac OS Extended.

I didn't transfer over my user files and settings, maybe something in there hoses it. I'll try that next, but it's a slow process. Also, I don't have an SSD.

I just did another clean installation. Unfortunately still having the same issue.