Cannot find symbol DataBindingComponent after AndroidX migration

Question

After migrating my whole project to android x I can't get it to compile anymore.

I get 100 of following errors:

e: M:\tmp\EverywhereLauncher\app\generated\data_binding_base_class_source_out\devWithoutTestWithAccessibilityDebug\dataBindingGenBaseClassesDevWithoutTestWithAccessibilityDebug\out\com\my\app\databinding\ActivityMainBinding.java:52: error: cannot find symbol
      @Nullable ViewGroup root, boolean attachToRoot, @Nullable DataBindingComponent component) {
                                                                ^
  symbol:   class DataBindingComponent
  location: class ActivityMainBinding

I don't know where to continue.

I have two problems now.

I only see 100 errors
all errors are the same and are probably hiding the real error

What I tried:

I have following in my projects build.gradle to increase the number of printed errors to 10000:
```
gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xmaxerrs" << "10000"
        }
    }
```
This always worked but in this case it does not increase the errors that are printed

Any ideas what I could do next?

Additional

I use following

android.enableJetifier=true
android.useAndroidX=true

I use android studio 3.2, with kotlin 1.2.61 and 3.3.0-alpha01 gradle build tools
I use the 3.3.0-alpha01 gradle build tools because I also use evernote com.evernote:android-state which does not otherwise - problem is explained here: https://github.com/evernote/android-state/issues/56

possibly related: https://stackoverflow.com/a/52489036/549372 — Martin Zeitler, Sep 27 '18 at 21:04
thanks a lot, this did not solve my problem but I tried the old data binding again and this lead to less errors and I could find the real culprit because of this — prom85, Sep 27 '18 at 21:27

prom85 · Accepted Answer · 2018-10-25T06:36:46.820

SOLUTION - increase logged erros

In the past, following was enough in the broject's build.gradle file:

gradle.projectsEvaluated {
    tasks.withType(JavaCompile.class) {
        options.compilerArgs << "-Xmaxerrs" << "10000"
    }
}

With kotlin, following will help:

afterEvaluate {
    if (project.plugins.hasPlugin("kotlin-kapt")) {
        kapt {
            javacOptions {
                option("-Xmaxerrs", 10000)
            }
        }
    }
}

REAL ISSUE

In my case I converted a class from java to kotlin with some fields like following:

@Arg
Integer someValue;

The converter created following:

@Arg
internal var someValue: Int? = null

The problem:

internal does not work with the annotation, so it failed, but the log only showed the data binding errors...

Example project build.gradle

https://gist.github.com/MFlisar/eca8ae6c2e6a619913ab05d503a4368f

You need to put it into your PROJECTS build.gradle, I've created a basic example gist here: https://gist.github.com/MFlisar/eca8ae6c2e6a619913ab05d503a4368f — prom85, Oct 25 '18 at 06:35

score 1 · Answer 2 · answered Dec 04 '18 at 14:35

1

I was also getting this bug after updating to androidx, tried everything suggested in a few stack overflow posts, finally updating to gradle plugin 3.3.0-beta03 worked

answered Dec 04 '18 at 14:35

enyciaa

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Cannot find symbol DataBindingComponent after AndroidX migration

2 Answers2