App crash on Creating Config File

[dheerajkotwani]

Actual Behaviour
When we try to Create Config File the app crashes.

Expected Behaviour
Config File should be created

Steps to reproduce it
1.Open Generate Config File from Navigation Drawer
2.Give some value to time interval
3.Click on Create Config File

LogCat for the issue
E/AndroidRuntime: FATAL EXCEPTION: main Process: io.pslab, PID: 20018 java.lang.NoSuchMethodError: No static method join(Ljava/lang/CharSequence;Ljava/lang/Iterable;)Ljava/lang/String; in class Ljava/lang/String; or its super classes (declaration of 'java.lang.String' appears in /system/framework/core-oj.jar) at io.pslab.activity.CreateConfigActivity.createConfigFile(CreateConfigActivity.java:187) at io.pslab.activity.CreateConfigActivity.access$800(CreateConfigActivity.java:31) at io.pslab.activity.CreateConfigActivity$3.onClick(CreateConfigActivity.java:111) at android.view.View.performClick(View.java:5619) at android.view.View$PerformClick.run(View.java:22298) at android.os.Handler.handleCallback(Handler.java:754) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:165) at android.app.ActivityThread.main(ActivityThread.java:6375) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:912) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:802)

Would you like to work on the issue?
Yes, but please guide me for the actual behaviour for this

[kshitiz-kumar]

Can you share the ss or gif because everything is working fine for me.

[amitYadavDev]

i want to work on this issue. @dheerajkotwani , @asitava1998

[ho-dor]

Unable to produce this crash. @CloudyPadmal can you verify or this can be closed.

[marcnause]

It crashes on devices with API level 25 and below.