error: No toolchain version defined in json file.

[liner]

Android QT 5.10.0 Clang armebi-v7a

compile output:
...
[100%] Linking CXX shared library libStrFileArray.so
[100%] Built target StrFileArray
16:33:23: The process "/usr/bin/cmake" exited normally.
16:33:23: Starting: "qtpath/QTAPI/5.10.0/android_armv7/bin/androiddeployqt" --input projpath/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/android_deployment_settings.json --output projpath/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/android-build --android-platform android-28 --jdk /usr/lib/jvm/java-8-openjdk-amd64 --gradle
No toolchain version defined in json file.
16:33:23: The process "qtpath/QTAPI/5.10.0/android_armv7/bin/androiddeployqt" exited with code 2.
Error while building/deploying project StrFileArray (kit: Android Qt 5.10.0 Clang armeabi-v7a)
When executing step "Build Android APK"
16:33:23: Elapsed time: 00:31.

projpath/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/android_deployment_settings.json:

{
"_description": "This file is generated by QtCreator to be read by androiddeployqt and should not be modified by hand.",
"application-binary": "projpath/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/libStrFileArray.so",
"ndk": "/home/linuxer/Android/Sdk/ndk/21.3.6528147",
"ndk-host": "linux-x86_64",
"qml-root-path": "projpath/StrFileArray",
"qt": "qtpath/QTAPI/5.10.0/android_armv7",
"sdk": "/home/linuxer/Android/Sdk",
"stdcpp-path": "/home/linuxer/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/arm-linux-androideabi/libc++_shared.so",
"target-architecture": "armeabi-v7a",
"tool-prefix": "llvm",
"toolchain-prefix": "llvm",
"useLLVM": true
}

[liner]

@liner wrong Qt version (5.10). After update on start error:

./qtcreator: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.28' not found (required by /media/linuxer/HD500GB/QTAPI/Tools/QtCreator/bin/../lib/Qt/lib/libQt6Core.so.6)

[JoeCFD]

Check the version of libc to see if it matches the requirement. If not, do upgrade.
ldd --version /usr/lib/x86_64-linux-gnu/libc.so

[liner]

@JoeCFD: "... if it matches the requirement." What requirement? Where it is defined?

[liner]

The reason was in version Qt 5.10. After upgrading to 5.15.2, this problem has gone, but others appear.
Why I have this problem in connection with the "wrong version" is not clear. As well as the emergence of many new problems.
In general, the so-called "free software" is not so free. A lot is hidden from users.

[stupidQt]

I totally agree with you. Many problem in it and also there is no trusted solution.