Android Question Error Generating R File after upgrading to B4A Beta v9.00

[Azhar]

Hello,

I'm sorry to bring this error up again as I've looked through previous threads to no avail.
I received this error immediately after upgrading to Beta v9.00 when trying to compile.
----------------------
B4A Version: 9.00 BETA #1
Parsing code. (0.12s)
Building folders structure. (0.05s)
Compiling code. (0.46s)
Compiling layouts code. (0.04s)
Organizing libraries. (0.00s)
Generating R file. Error
ERROR: Unable to open class file gen\com\salat\calc\R.java: No such file or directory
-------------------------

I've updated the B4A SDK Manager
Changed the Manifest Editor to android:targetSdkVersion="28"/>
Configured paths of Android Jar to C:\Android\platforms\android-28\android.jar

I don't know what else to do.

I get this error when opening the B4A SDK Manager (Attached)...
https://drive.google.com/drive/folders/0B5VMcOdwjuymWjg4ZG9OWWYtWWM?usp=sharing

 

[Erel]

Your project include a home screen widget, right? If so then it is fixed for the next beta.