ActivityMainBinding and FragmentTitleBinding unresolved reference about andfun-kotlin-android-trivia HOT 16 CLOSED

The errors seem to indicate that Android couldn't bind the layout files because there's some kind of binding error. Debugging data binding errors is notoriously tricky because Android doesn't provide much feedback. Sometimes you just have to search the build output for "error" and there is usually a line describing the binding error.

In case there's a version conflict somewhere, try copying the library dependencies from our completed code on the master branch. That version works without the additional library.

If all else fails, compare your code to our solution.

from andfun-kotlin-android-trivia.

Hi Mishkuza, The master branch of that project does work as far as I know. I no longer work for Udacity, but master was last updated and working 6 months ago. Try selecting "Invalidate Caches / Restart" from the File menu (not sure where it is on Win).

from andfun-kotlin-android-trivia.

I also encountered this problem while going through this the second lesson(Layouts)!
I fixed it by rebuilding the project after changing to root element to in the activity_main.xml file.

Here's the StackOverflow thread from where I got the hint!

from andfun-kotlin-android-trivia.

The name is derived from the name of the layout file, that is, activity_main + Binding. Make sure it follows the same pattern

from andfun-kotlin-android-trivia.

Yeah this is not working for myself either. Very unfortunate, I am going to follow through the videos and not troubleshoot it any further I've wasted hours already.

from andfun-kotlin-android-trivia.

The errors seem to indicate that Android couldn't bind the layout files because there's some kind of binding error. Debugging data binding errors is notoriously tricky because Android doesn't provide much feedback. Sometimes you just have to search the build output for "error" and there is usually a line describing the binding error.

In case there's a version conflict somewhere, try copying the library dependencies from our completed code on the master branch. That version works without the additional library.

If all else fails, compare your code to our solution.

Hello @jheske ,

This issue is still present. I've cloned the project and it occurs on master branch, the latest commit

for all fragments which use data binding

from andfun-kotlin-android-trivia.

Hi Mishkuza, The master branch of that project does work as far as I know. I no longer work for Udacity, but master was last updated and working 6 months ago. Try selecting "Invalidate Caches / Restart" from the File menu (not sure where it is on Win).

@jheske thank you so much! I often forget to try it first and instead go to stackoverflow and dig in there trying loophole solutions ... Cheers to you, even though it's not in your duties anymore to follow here, thank you!

from andfun-kotlin-android-trivia.

Hi Mishkuza, The master branch of that project does work as far as I know. I no longer work for Udacity, but master was last updated and working 6 months ago. Try selecting "Invalidate Caches / Restart" from the File menu (not sure where it is on Win).

The basic and fundamental things to do tends to be forgotten. After Invalidate the caches & restart, the Data Binding works like expected once more.

from andfun-kotlin-android-trivia.

I can also confirm that "Invalidate Caches / Restart" fixes the problem.

from andfun-kotlin-android-trivia.

i have done and checked all this hints but still getting error

from andfun-kotlin-android-trivia.

i have done and checked all this hints but still getting error

@yavinash1413 did you solve the problem finally?

from andfun-kotlin-android-trivia.

did you got the solution to this very problem I'm getting the same issue

from andfun-kotlin-android-trivia.

I have this problem on a new fresh project. So based on the steps that we have to take

1. I added an blank fragment_policy.xml
2. It also created PolicyFragment.kt for me.
3. Inside override fun onCreateView() of PolicyFragment.kt I can't instantiate the binding. It's not found. (Despite building and invalidating the project)

Under the generated java files under java/com.company.app/databinding I can only see ActivityMainBindingImpl

There is nothing about fragment. Have I missed anything? Thank you so much for your help

from andfun-kotlin-android-trivia.

I found the reason. Despite adding fragment through Android Studio it doesn't add tag to the fragment view, making it worthless. Until you do it by hand.

from andfun-kotlin-android-trivia.

Hi guys, I may have found the resolution to this problem.
You should nest your TitleFragment layout inside a layout tag, fix up the namespace declarations and create your data tags inside the Fragment Layout. That will fix the type mismatch from ViewBindingUtil to whatever you are using +util. Attaching pictures because my English is horrible. Love from Ghana

https://drive.google.com/file/d/14D1VCtkOumKPDk7pR8mh5cJ06Pe_SLZO/view?usp=sharing
https://drive.google.com/file/d/1r-VO5FpShAx65xwhe0VEF7ZhNe96MCtX/view?usp=sharing

from andfun-kotlin-android-trivia.

We'd appreciate it if a learner would submit a PR for this issue.
Besides, we could not replicate the issue.

from andfun-kotlin-android-trivia.