Android Question Generating R File Errors. Constraintlayout 2.0.4. Has already been defined.

Ronald Berardinis · Feb 7, 2021

I am getting this strange errors that came out of nowhere?

Generating R file. Error
c:\android\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:339: error: Attribute "android:alpha" has already been defined
c:\android\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationX" has already been defined
c:\android\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationY" has already been defined
c:\android\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationZ" has already been defined
c:\android\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_clock_period_toggle.xml:18: error: Error: No resource found that matches the given name (at 'checkedButton' with value '@id/material_clock_period_am_button').
c:\android\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_timepicker_dialog.xml:82: error: Error: No resource found that matches the given name (at 'layout_constraintEnd_toStartOf' with value '@id/material_timepicker_ok_button').

One day all is great and next day error pops up about constraintLayout?
I have installed all the components labeled Constraint.
It does not make any sense that you can have a large list constraint components that all relate to the same thing ?
Why not just one Constraint library or component or whatever these installed stuff is called?
BTW, I am using B4A version 10.5

In my installed-components.txt file i see these entries and i believe it is related to the error i am getting

com.google.android.material\:material=1.3.0
androidx.constraintlayout\:constraintlayout=2.0.4

What is the solution to fix my errors so i can compile the program successfully?

Thank you for any help you can give me on this.

agraham · Feb 7, 2021

Ronald Berardinis said:
I have installed all the components labeled Constraint.

If this means you have been playing with the SDK Manager then start again with a fresh SDK installed exactly as here

B4A – The simple way to develop native Android apps

B4A includes all the features needed to quickly develop any type of Android app. B4A is used by tens of thousands of developers from all over the world, including companies such as NASA, HP, IBM and others.

www.b4x.com

and see if the problem persists.

Ronald Berardinis · Feb 7, 2021

agraham said:
If this means you have been playing with the SDK Manager then start again with a fresh SDK installed exactly as here

B4A – The simple way to develop native Android apps

B4A includes all the features needed to quickly develop any type of Android app. B4A is used by tens of thousands of developers from all over the world, including companies such as NASA, HP, IBM and others.

www.b4x.com

and see if the problem persists.

thank you for your suggestion.
I followed directions but now have a new error

Generating R file. Error
c:\android\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_clock_period_toggle.xml:18: error: Error: No resource found that matches the given name (at 'checkedButton' with value '@id/material_clock_period_am_button').
c:\android\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_timepicker_dialog.xml:38: error: No resource identifier found for attribute 'barrierMargin' in package 'compuplus.abc_client'
c:\android\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_timepicker_dialog.xml:82: error: Error: No resource found that matches the given name (at 'layout_constraintEnd_toStartOf' with value '@id/material_timepicker_ok_button').

these errors don't look like any variables in my code?

is this something in an XML file ?

agraham · Feb 7, 2021

It's nothing to do with variables in your code or an XML file. I'm afraid that I have no idea why it is looking for those (non-existent) items. Possibly it is related to one of the libraries you are trying to use.

Ronald Berardinis · Feb 7, 2021

I will start new Thread.
My first problem was answered by reinstalling again.
now new one about "No Resource found"

agraham · Feb 8, 2021

Ronald Berardinis said:
My first problem was answered by reinstalling again.

You did note that you should not use Windows to extract the SDK ?

Erel · Feb 8, 2021

There is a specific issue with constraintlayout-2.0.4. I guess that you are using the DJI library, right?

The solution was to set the sdk manager to download an older version of this resource. If you have already downloaded the problematic version then you need to delete it or start with a new SDK.

Ronald Berardinis · Feb 8, 2021

agraham said:
You did note that you should not use Windows to extract the SDK ?

i did use the 7-Zip program to unzip.
that seemed to make the error go away.

Ronald Berardinis · Feb 8, 2021

Erel said:
There is a specific issue with constraintlayout-2.0.4. I guess that you are using the DJI library, right?

The solution was to set the sdk manager to download an older version of this resource. If you have already downloaded the problematic version then you need to delete it or start with a new SDK.

How can I determine what version i downloaded.
Is there anything in a directory that can be replaced or change some ini file ?

Erel · Feb 8, 2021

Do you still get any error?

Ronald Berardinis · Feb 8, 2021

Erel said:
Do you still get any error?

Yes, still getting errors.
when you say to reinstall the SDK Manager
i believe you are speaking to this program.

On the how to install process what number installs this SDK Manager ?
i am referencing the address B4A – The simple way to develop native Android apps (b4x.com) https://www.b4x.com/b4a.html
How can i delete/uninstall and restart with different version.

Erel · Feb 8, 2021

In most cases you never need to touch B4A Sdk Manager. Delete your current SDK and download the two components as explained in that page.

Ronald Berardinis · Feb 8, 2021

Just to be clear.
I will delete the directory c:\Android

And redo Step #2.

walterf25 · Feb 9, 2021

I'm sorry to jump on this thread, but I am also having the issue with a project I created some time ago, my customer has asked me to make some small changes but now the project will not run as I am getting the following error:

Generating R file. Error
c:\android_sdk\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:339: error: Attribute "android:alpha" has already been defined
c:\android_sdk\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationX" has already been defined
c:\android_sdk\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationY" has already been defined
c:\android_sdk\tools\..\extras\b4a_remote\androidx\constraintlayout\constraintlayout\2.0.4\unpacked-constraintlayout-2.0.4\res\values\values.xml:342: error: Attribute "android:translationZ" has already been defined
c:\android_sdk\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_clock_period_toggle.xml:18: error: Error: No resource found that matches the given name (at 'checkedButton' with value '@id/material_clock_period_am_button').
c:\android_sdk\tools\..\extras\b4a_remote\com\google\android\material\material\1.3.0\unpacked-material-1.3.0\res\layout\material_timepicker_dialog.xml:82: error: Error: No resource found that matches the given name (at 'layout_constraintEnd_toStartOf' with value '@id/material_timepicker_ok_button').

I have downloaded the command line tool and resources recommended on this link https://www.b4x.com/b4a.html and have created a new directory where I have placed those two folders but i am still seeing the same issue.

These are the libraries i am using if is of any help and i am using B4A 10.5.

Any ideas?

Walter

Erel · Feb 9, 2021

What are you using DesignSupport for? This is probably the cause of this error.

Not sure where constraintlayout-2.0.4 comes from. The sdk manager should download a different version (1.1.3). Switching to v1.1.3 should solve this issue.
Follow these steps: https://www.b4x.com/android/forum/threads/dji-library-communication-error.126004/post-787611

Ronald Berardinis · Feb 9, 2021

walterf25 said:
I'm sorry to jump on this thread, but I am also having the issue with a project I created some time ago, my customer has asked me to make some small changes but now the project will not run as I am getting the following error:

I have downloaded the command line tool and resources recommended on this link https://www.b4x.com/b4a.html and have created a new directory where I have placed those two folders but i am still seeing the same issue.

These are the libraries i am using if is of any help and i am using B4A 10.5.

View attachment 107696
Any ideas?

Walter

Like you, i did the same and downloaded the files and recreated the \Android directory as the installation instructions specified.
However, i did a second time but instead used the 7-Zip.exe to export the files.
The video on the instructions page shows a simple copy and paste using windows opening the zip files.
Instead use the 7-Zip.exe program to first save to a separate directory then copy to the \Android folder.
Strange but that got rid of the 2.0.4 issue.
then i had a reference in my program to #AdditionalJar: com.android.support:design which i commented out.
That was the cause of my 2nd problem.
Again, all worked fine with my B4A for years.
The project compiled without issues for 3 years.
Then one day, all of a sudden, i could not compile?
One of the suggested components in the SDK manger was installed that screwed my system up.
Next time i will not download unless i wait at least a month before bugs worked out.

walterf25 · Feb 9, 2021

Erel said:
What are you using DesignSupport for? This is probably the cause of this error.

Not sure where constraintlayout-2.0.4 comes from. The sdk manager should download a different version (1.1.3). Switching to v1.1.3 should solve this issue.
Follow these steps: https://www.b4x.com/android/forum/threads/dji-library-communication-error.126004/post-787611

The issue was the constraintlayout-2.0.4 when I looked inside that folder there were two versions 2.0.4 and 1.1.3 I deleted the 2.0.4 version and left only v1.1.3 and this fixed the issue.

Thanks,
Walter

Greg Breinholt · Feb 10, 2021

Getting the same issue... but I don't see Version 1.1.3 (only the dreaded 2.0.4):

I guess I'll delete the SDK and start again.

Greg Breinholt · Feb 10, 2021

Greg Breinholt said:
Getting the same issue... but I don't see Version 1.1.3 (only the dreaded 2.0.4):

View attachment 107777

I guess I'll delete the SDK and start again.

Same, I don't see any version the than 2.04:

Erel · Feb 11, 2021

Are you using B4A v10.5?

Android Question Generating R File Errors. Constraintlayout 2.0.4. Has already been defined.

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