No toolchain version defined in json file.

Qt Creator 4.14.2 Based on Qt 5.15.2 (GCC 7.3.1 20180303 (Red Hat 7.3.1-5), 64 bit)

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Initializing deployment to Android device/simulator
Deploying to YBH9K21427900803
16:55:23: Running steps for project StrFileArray...
16:55:23: Starting: "/usr/bin/cmake" --build . --target all
[ 5%] Automatic MOC and UIC for target StrFileArray
[ 5%] Built target StrFileArray_autogen
Consolidate compiler generated dependencies of target StrFileArray
[100%] Built target StrFileArray
16:55:24: The process "/usr/bin/cmake" exited normally.
16:55:24: Starting: "/qtpath/QTAPI/5.10.0/android_armv7/bin/androiddeployqt" --input /projpath/cpp_projects/StrFileArray/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/android_deployment_settings.json --output /projpath/cpp_projects/StrFileArray/build-StrFileArray-Android_Qt_5_10_0_Clang_armeabi_v7a-Debug/android-build --android-platform android-30 --jdk /usr/lib/jvm/java-8-openjdk-amd64 --gradle
No toolchain version defined in json file.
16:55:24: 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"

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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": "/media/linuxer/HD500GB/cpp_projects/StrFileArray/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": "/media/linuxer/HD500GB/cpp_projects/StrFileArray/StrFileArray", "qt": "/media/linuxer/HD500GB/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{color:#ffffff}} 

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Java, Android SDK, OpenSSL settings are OK.