'Not enough storage' despite over 100mb available

[Guest newfold3r]

Having a few problems updating certain apps on my Android devices. Most apps will update fine, but a few larger ones won't, saying there isn't enough storage.

Both devices have at least 100mb of available storage, and the full apps are much smaller than 100mb, the update packages for them are smaller still. They could easily fit into the available storage, yet it's claiming that there isn't enough storage.

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Is there any solution to this? I don't have many apps installed on the phone,most are stored on the SD card, and I can't really uninstall any of them as they're all important apps.