ERR_FILE_NOT_FOUND error showing on ionic 4 after create android apk file

#1

I have started a new demo app by the command “ionic start myApp sidemenu”

After creating a new app, I add the platform for android device and after creating an APK file install that and trying to lunch the app but showing error ‘ERR_FILE_NOT_FOUND’.

So After a search on google found one solution fixed this
please check this link https://ionicframework.com/docs/v3/wkwebview/#downgrading-to-uiwebview

also added below code in config.xml

Also deleted the line from index.html.

after all the changes created a new apk file and installed the apk file, then ‘ERR_FILE_NOT_FOUND’ issue solved but not showing any content, showing blank.
And I have inspected and get an error ‘Failed to load module script: The server responded with a non-JavaScript MIME type of “”. Strict MIME type checking is enforced for module scripts per HTML spec.’

#2

hi Subha3888

just created a new project as command
ionic start myApp sidemenu

and then run one more command for apk file
ionic cordova build android --prod

then find a apk file inside platform
platforms\android\app\build\outputs\apk\debug

you need to just create ones again a project following these steps. it will solve your problem
cheers!!

#3

@ishaquemujtaba
I have tried with this, and the same issue. also tried with android studio
I have tried with android@8.0.0 and android@7.1.0, but in both cases, the same problem showing.

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#4

your are using any api’s inside your app because it is not apk problem it is showing error while running at localhost

#5

Thank you for your reply. but i have fixed this issue. Thanks again for your help.