Ajax HTTP call fail

I just re-build an old project (2-3 months ago) with version, it failed. Then I follow the error message to delete the “cordova-plugin-whitelist” plugin and take out the spec version in . It build the release APK, but when I run it in the Android device, it cannot get respone from the Ajax HTTP call.

I try to test with the sample project Basic\7.Web Services\Ajax and ReadFile\Ajax.appstudio to test with the Ajax function. I just “Start in Desktop browser”, it return Error: Status = 404. When I “Deploy to local folder”, it return Error: Status = 0.

Try hooking up the remote debugger to your device while it is running your app. You’ll probably see an error message which will help.