String IndexOutOfBounds Exception while using extensions in companion app

Is camerabase64 still working? I receive extensions.java.lang.StringIndexOutOfBoundsException: start 1

Working OK here in companion app 2.73u on Android 15

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Still get run time error on android 13 and companion 2.73, try to download the extentions several time from different browsers and reinstall companion app but nothing changed :upside_down_face:

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image

Can't generate that error here

Try this companion version

Taifun

Try with other version of companion (272d4), reloading browser (even with other browsers) not worked. with any external extention I will receive the same error. Just give up on using this tool anymore. Thank you for help

You are saying you get the error with any extension you try ?

Let us check a few things:

Device Make and Model ?
Android 13 (you already said)

Can you provide the aia project where this generates the runtime error, or make an example one that demonstrates the same behaviour ?

I have added Ullis Roboter Seite 'AI2 UDP Extension' to a project and I received the error "Unable to load extensions.java.lang.StringIndexOutOfBoundsException: String index out of range: -1" when i tried to use The Companion on a simple app with only a label and the extension. When the extension was removed, it worked.
I also tried using extensions 'com.KIO4_UDP.aix' & 'p299K_UDP_v2.aia' on the examples by Juan_Antonio and also with simple apps, I got the same error message whenever the extensions where included.
I tried the Ullis example app 'UrsAI2UDPTest' with the Companion, again, with the same error.
When I built the example, and uploaded it, it performed well, but, I am still receiving the same errors whenever I try to use The Companion on the example.

Which Android device and Android version are you using for your tests?

Did you try

Taifun

I tested these apps using Companion 2.73u on both an Android 13 and 10 with appinventor on Firefox 128.4esr(64) with Debian 12.
I have downloaded the version 2.72d4 with the link that you provided and the same error was shown as it was with the 2.73u Companion, and I then built the apk for the example and it worked well, but the Companion(s) still gives the error

Which devices are you using for your tests?
Taifun

I have tried it on both devices

Just tested my cam64 extn demo app on Google Pixel 4a, Android 13 with companion 2.73u, and get the same error:

Unable to load extensions.java.lang.StringIndexOutOfBoundsException: start 1, end 0, length 0

Does not then load the app in companion. So it seems not a device specific issue, but a bug in companion 2.73 on Android <14 ? Also tested on other aia projects with extensions, getting the same result.

[EDIT - also tested on my Genymotion Emulator, which runs an Android 12 Google Pixel 3XL. This also fails to load an aia project with the same error.]

[EDIT - Compiled app works OK on these devices]

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Even adding the extention without any block returns the runtime error in companion.

@MikeTemp and @F_H
Are these Sansung devices?

Taifun
(using a Samsung A54 running Android 14 and do not have that issue)

My Android 10 is a Samsung Galaxy S9 SM-G960U
My Android 13 is a Galaxy A71 5G SM-A716U1

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Today on android14 I noticed that resources are not being sent to companion. Although yesterday everything was fine on 2.73

I try on Samsung S20 FE 5G SM-G781B/DS. The problem still exists but not limited to only this. Lets see if this one resolves first then taking care of other issues.

Error adding extension: Unable to load extensions.java.lang.StringIndexOutOfBoundsException: String index out of range: -1

adb logcat: 11-21 17:32:37.527 16629 17117 D AssetFetcher: target file = /storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/assets/external_comps/com.bosonshiggs.chatflow/classes.jar

This is happening with any extension

Android 11

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tested on old Asus with Android 7 and Companion v. 2.73, on Honor Magic 5 lite and Companion v.2.73u and on Xiaomi Redmi 9 with Companion v.2.73 and with any extension