Hi all, I am following the instructions from https://files.ettus.com/manual/page_usrp_e3xx.html#e31x_migration . I have installed the SD card file that I found using: uhd_images_downloader -t e310 -t sdimg And Installed the sdk from the file provided with: uhd_images_downloader -t sdk -t e310 Which provided the file: e310_sg3-oecore-x86_64-cortexa9t2hf-neon-toolchain-nodistro.0.sh I installed this and set up the environment with: source environment-setup-cortexa9t2hf-neon-oe-linux-musleabi Building UHD worked fine, however when I try to build GnuRadio I get the following python version mismatch: dscc@ltdscc-vm:~/gnuradio/build-arm$ cmake -Wno-dev -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchains/oe-sdk_cross.cmake \-DCMAKE_INSTALL_PREFIX=/usr -DENABLE_GR_VOCODER=OFF -DENABLE_GR_ATSC=OFF \ > -DENABLE_GR_DTV=OFF -DENABLE_DOXYGEN=OFF ../ -- The CXX compiler identification is GNU 8.2.0 -- The C compiler identification is GNU 8.2.0 -- Check for working CXX compiler: /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-g++ -- Check for working CXX compiler: /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-g++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Check for working C compiler: /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-gcc -- Check for working C compiler: /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Build type not specified: defaulting to release. -- Build type set to Release. -- Build date set to Mon, 12 Apr 2021 08:23:16Z. -- -- The build system will automatically enable all components. -- Use -DENABLE_DEFAULT=OFF to disable components by default. -- Looking for pthread.h -- Looking for pthread.h - found -- Looking for pthread_create -- Looking for pthread_create - found -- Found Threads: TRUE -- Boost version: 1.68.0 -- Found the following Boost libraries: -- date_time -- program_options -- system -- regex -- thread -- unit_test_framework -- chrono -- atomic -- -- Configuring testing-support support... -- Dependency Boost_UNIT_TEST_FRAMEWORK_FOUND = ON -- Enabling testing-support support. -- Override with -DENABLE_TESTING=ON/OFF -- Found Git: /usr/bin/git -- Extracting version information from git describe... CMake Warning at CMakeLists.txt:93 (MESSAGE): The compiler selected to build GNU Radio (GCC version 8.2.0 : /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-g++) is older than that officially supported (8.3.0 minimum). This build may or not work. We highly recommend using a more recent GCC version. -- Check if the system is big endian -- Searching 16 bit integer -- Looking for sys/types.h -- Looking for sys/types.h - found -- Looking for stdint.h -- Looking for stdint.h - found -- Looking for stddef.h -- Looking for stddef.h - found -- Check size of unsigned short -- Check size of unsigned short - done -- Using unsigned short -- Check if the system is big endian - little endian -- Performing Test HAVE_VISIBILITY_HIDDEN -- Performing Test HAVE_VISIBILITY_HIDDEN - Success -- Performing Test HAVE_WARN_SIGN_COMPARE -- Performing Test HAVE_WARN_SIGN_COMPARE - Success -- Performing Test HAVE_WARN_ALL -- Performing Test HAVE_WARN_ALL - Success -- Performing Test HAVE_WARN_NO_UNINITIALIZED -- Performing Test HAVE_WARN_NO_UNINITIALIZED - Success -- Compiler Version: arm-oe-linux-musleabi-gcc (GCC) 8.2.0 Copyright (C) 2018 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. -- Compiler Flags: /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-gcc:::-O3 -DNDEBUG -O2 -pipe -g -feliminate-unused-debug-types -fvisibility=hidden -Wsign-compare -Wall -Wno-uninitialized /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/arm-oe-linux-musleabi/arm-oe-linux-musleabi-g++:::-O3 -DNDEBUG -O2 -pipe -g -feliminate-unused-debug-types -fvisibility=hidden -Wsign-compare -Wall -Wno-uninitialized -- ADDING PERF COUNTERS -- PYTHON_EXECUTABLE not set - using default python3 CMake Error at /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find PythonInterp: Found unsuitable version "3.5.6", but required is at least "3.6.5" (found /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/python3) Call Stack (most recent call first): /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/share/cmake-3.12/Modules/FindPackageHandleStandardArgs.cmake:376 (_FPHSA_FAILURE_MESSAGE) /usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/share/cmake-3.12/Modules/FindPythonInterp.cmake:159 (FIND_PACKAGE_HANDLE_STANDARD_ARGS) cmake/Modules/GrPython.cmake:24 (find_package) CMakeLists.txt:338 (include) -- Configuring incomplete, errors occurred! See also "/home/dscc/gnuradio/build-arm/CMakeFiles/CMakeOutput.log" Is there a more up to date version of the sdk with python version 3.6.5 minimum? Or am I missing some other step? Thanks, David P Please consider the environment before printing this e-mail.