Why won't some app's work or download although others are fine?

[Windows Central Question]

Tried to download some new app's and unfort have failed ("requires attention").
I have few app's on my phone. Some work some dont. Seem to half download then fail.
Not overly tech savvy unfort. The phone apparently has current updates so im confused. Any thoughts? Cheers

 

[ashram]

did you tap on the "require's attention" message instead of just retrying? if your phone has an SD card, some apps require installation on internal memory. tapping on the message will ask if it's ok to do that.