CODEWITHSUNDEEP
androidandroid-databindingandroidx
youngwoon
youngwoon

Reputation: 363

java.lang.NullPointerException when dataBinding enabled = true

Whenever I enable this in my app gradle

dataBinding { 
    enabled = true
}

and then sync -> It completely succeed.

but when I "run" it, It builds fail and shows this error

java.lang.NullPointerException at android.databinding.tool.store.LayoutFileParser.parseOriginalXml(LayoutFileParser.java:135) at android.databinding.tool.store.LayoutFileParser.parseXml(LayoutFileParser.java:93) ...

my app has little amount of Kotlin code, and android version is 3.5, minSdkVersion 19, targetSdkVersion 28, and upgraded to androidX

How can I solve this? which part should I search for solve this problem???

except above code, every thing works perfect.

Edit And when I rolled back my code before upgrading to androidX and compiled it, it also shows "Null point exception" and at this time, there are no extra message without just "Null point exception".

Upvotes: 1

Views: 3166

Answers (2)

Gorkem KARA
Gorkem KARA

Reputation: 191

I tried a little too much but I figured it out. I created the project on the Mac computer and it wasn't a problem when I switched to windows later. When I tried to create a new file, I got this error and just understood why. Every time I right-clicked on the file I just added, I saw an option called "remove BOM". Clicking this solved my problem. But I did not find the solution to the problem logically, I just found it random.

ex: https://prnt.sc/riw6ex

Upvotes: 0

youngwoon
youngwoon

Reputation: 363

Finally I got answer. (cc. android databinding error:Execution failed for task ':app:dataBindingProcessLayoutsDebug')

I guessed it was because of BOM. Someone said it will happen when the code is used in two different circumstances(Window and Mac).

So in 'res' folder, I clicked 'remove BOM' button in android studio and that action changed some xml files.

<?xml version="1.0" encoding="utf-8"?>

But it wasn't worked in Mac. This solution worked only in Window.

Upvotes: 8

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