Android Question Error sdk-version>=26

Peekay · Jun 28, 2020

I get these errors when I run my B4A project:

Compiling generated Java code. (0.03s)
Convert byte code - optimized dex. Error
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
Uncaught translation error: com.android.dx.cf.code.SimException: invalid opcode ba (invokedynamic requires --min-sdk-version >= 26)
7 errors; aborting

I think the error is in the manifest file which has the following code:

Manifest:

AddManifestText(<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="26"/><supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true"/>)
AddManifestText(<uses-feature android:name="android.hardware.telephony" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.autofocus" android:required="false" />)
AddManifestText(<uses-feature android:name="android.hardware.camera.flash" android:required="false" />)
AddManifestText(<uses-permission
 android:name="android.permission.WRITE_EXTERNAL_STORAGE"
 android:maxSdkVersion="19" />)
AddManifestText(<uses-permission android:name="android.permission.SEND_SMS" />)
AddPermission("android.permission.INTERNET")
AddPermission("android.permission.ACCESS_FINE_LOCATION")
AddPermission("android.permission.READ_PHONE_STATE")
AddPermission("android.permission.VIBRATE")
AddPermission("android.permission.CAMERA")
AddPermission("android.permission.FLASHLIGHT")
AddPermission("android.permission.READ_CONTACTS")
AddPermission("android.permission.READ_PROFILE")
AddPermission("android.hardware.camera")
AddPermission("android.permission.ACCESS_NETWORK_STATE")
AddPermission("android.permission.WRITE_EXTERNAL_STORAGE")
AddPermission("android.permission.ACCESS_WIFI_STATE")
AddPermission("com.google.android.providers.gsf.permission.READ_GSERVICES")
AddPermission("android.permission.BLUETOOTH")
AddPermission("android.permission.GET_ACCOUNTS")
AddPermission("android.permission.SEND_SMS")
AddPermission("android.permission.READ_SMS")
AddPermission("android.permission.WRITE_SMS")
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
AddPermission("android.permission.WAKE_LOCK")
AddPermission("android.permission.DEVICE_POWER")
AddPermission("android.permission.GET_ACCOUNTS")
AddManifestText(<uses-feature android:name="android.hardware.location.gps"/>)
AddPermission("android.permission.READ_PHONE_STATE")

Any help will be appreciated.

Thanks
PK

JohnC · Jun 28, 2020

Well, the error says:

B4X:

invokedynamic requires --min-sdk-version >= 26

And in your manifest you have the min set to:

B4X:

android:minSdkVersion="5"

So maybe try setting the minsdkversion in the manifest to "26" and see if it runs.

But, I am curious what lib/function requires such a high minSDK level.

Peekay · Jun 28, 2020

JohnC said:
So maybe try setting the minsdkversion in the manifest to "26" and see if it runs.

I have changed from 5 to 26, but it gives the same errors.

PK

Johan Schoeman · Jun 28, 2020

Maybe a permission required in the B4A code? Just a long shot....

Peekay · Jun 28, 2020

It gets this error before it even starts the Activity_Create sub in Main or the Service_Create sub in the starter module.

Johan Schoeman · Jun 28, 2020

PK, can you maybe upload a sample project that demonstrates the error?

agraham · Jun 28, 2020

The project has too many missing libraries to compile.

Erel · Jun 29, 2020

There isn't enough information here to help the OP. No reason to try and guess.
The error itself is explained here: https://www.b4x.com/android/forum/threads/107278/#content

Peekay · Jun 29, 2020

Thanks Erel,

The program looks for files which end with '.aar', from the downloaded folder '\Desugar' (where I see none), whilst I have a few hundred '.aar' files in different sub folders in my 'Program Files (x86)' folder.
How would I know which '.aar' files to desugar?
I think I do not understand the process well.

PK

Erel · Jun 29, 2020

Peekay said:
whilst I have a few hundred '.aar' files in different sub folders in my 'Program Files (x86)' folder

No reason for that. Sounds like you need to delete all of these folders and carefully follow the installation instructions: https://www.b4x.com/b4a.html

Peekay · Jun 30, 2020

Thanks Erel,

I have deleted all those folders and followed the installation instructions as suggested.
However, in the c:\java folder I now have 265 '.AAR' files in many different sub folders.
Which ones must I select to desugar?

PK

Erel · Jun 30, 2020

All that I can say is that you haven't followed the instructions carefully. There should be 0 AARs in the java folder.

Peekay · Jun 30, 2020

The c:\java folder was a new one I made as suggested in the link.

When I extracted the required resources it made the extras sub folder for that as your graphic of the folders shows.
I am not sure where they come from, but I presume they got installed when I ran the sdkmanager.bat in which those extras were already marked to be installed.
Can I just delete these then?
Where will I find those who needs to be desugared. There are 7 of them as my error code above shows.

PK

Erel · Jun 30, 2020

I don't have a clue on what you are talking about.
It is completely wrong.

There should be 0 AARs in the java folder. You don't need to run sdkmanager.bar. You just need to do what all developers do and follow the three steps in the installation instructions.
I'm sorry but I cannot further help you.

Peekay · Jun 30, 2020

That's fine Erel, maybe there is someone else who can help me.

JohnC · Jun 30, 2020

Erel said:
All that I can say is that you haven't followed the instructions carefully. There should be 0 AARs in the java folder.

I don't think he is saying that he sees AARs in the "C:\Java" folder itself - it seems like what he is saying is that he sees these aar files in various "sub-folders" off of the \java directory (because he says "I now have 265 '.AAR' files in many different sub folders").

agraham · Jun 30, 2020

What is this C:\Java folder? It sounds like nothing to do with B4A. If it is the Java installation folder just leave it alone. I would delete/uninstall everything, B4A, Java and AndroidSDK and follow exactly the instructions Erel gave. Don't think you need to do anything else, it will just work.

JohnC · Jun 30, 2020

agraham said:
What is this C:\Java folder?

In the instructions that Erel pointed to, that is the suggested location to unpack (install the Java SDK) - "Download the zip and unpack it. C:\java is a good place for it."

Peekay · Jun 30, 2020

Thanks JohnC,

The desugar thread says:

The latest version of ExoPlayer depends on 7 AAR packages. Desugaring these packages requires several steps:
- Extract the inner classes.jar from each AAR.
- Desugar it.
- Put it back or remove the original one.

I am just trying to put this into context for me to understand.
Must I only desugar Exoplayer .AAR files , or are there others. What and where are they?
Alternatively, do I need to desugar any .AAR files. How would I know which and why?
Incidentally I have 7 sdk version errors in my program regarding this, so it is only natural for me to deduce that I only need to desugar the 7 ExoPlayer .AAR files.
I am a newbie to B4A although I have programmed in VB for 45 years and in Fortran IV even longer. Please be patient with me. I know I will get there. This is my first B4A app.
I know everybody is busy and I appreciate that, but even so, I have found most members to be very helpful and tolerant.

PK

JohnC · Jun 30, 2020

I never used the ExoPlayer before, but half-way down on it's lib page:

ExoPlayer - MediaPlayer / VideoView Alternative

Edit: new version: https://www.b4x.com/android/forum/threads/exoplayer-media3-video-player.158204/ ExoPlayer is an open source project that replaces the native MediaPlayer and VideoView types. https://google.github.io/ExoPlayer/ License: Apache 2.0 It supports more media formats, it is more...

www.b4x.com

It has a download called "It depends on several additional aar files (should be copied to the additional libraries folder):"

So those are probably the aar files you need to desugar. But there are EIGHT AAR files (not just 7) in that zip, so I don't know if you desugar all eight if it will effect anything.

I never desugared files before, so I can't help with that.

But, once you do desugar them, then place them in the "Additional Libraries" folder as mentioned.

Android Question Error sdk-version>=26

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