# FAQ on Hi3861 - [What should I do when the message configure: error: no acceptable C compiler found in $PATH is displayed during Python 3 installation?](#section1221016541119) - [What should I do when the message -bash: make: command not found is displayed during Python 3 installation?](#section1913477181213) - [What should I do when the message zlib not available is displayed during Python 3 installation?](#section108211415131210) - [What should I do when the message No module named '\_ctypes' is displayed during Python 3 installation?](#section2062268124) - [What should I do when the message No module named 'Crypto' is displayed during compilation and building?](#section982315398121) - [What should I do when the message No module named 'ecdsa' is displayed during compilation and building?](#section102035451216) - [What should I do when the message Could not find a version that satisfies the requirement six\>=1.9.0 is displayed during compilation and building?](#section4498158162320) - [What should I do when the message cannot find -lgcc is displayed during compilation and building?](#section11181036112615) - [What should I do when the message indicating Python cannot be found is displayed during compilation and building?](#section1571810194619) - [What should I do when an error with lsb\_release occurs during kconfiglib installation?](#section691681635814) ## What should I do when the message **configure: error: no acceptable C compiler found in $PATH** is displayed during Python 3 installation? - **Symptom** The following error occurs during Python 3 installation: ``` configure: error: no acceptable C compiler found in $PATH. See 'config.log' for more details ``` - **Possible Causes** **GCC** is not installed. - **Solutions** 1. Run the **apt-get install gcc** command to install **GCC** online. 2. After the installation, reinstall Python 3. ## What should I do when the message **-bash: make: command not found** is displayed during Python 3 installation? - **Symptom** The following error occurs during Python 3 installation: ``` -bash: make: command not found ``` - **Possible Causes** **Make** is not installed. - **Solutions** 1. Run the **apt-get install make** command to install **Make** online. 2. After the installation, reinstall Python 3. ## What should I do when the message **zlib not available** is displayed during Python 3 installation? - **Symptom** The following error occurs during Python 3 installation: ``` zipimport.ZipImportError: can't decompress data; zlib not avaliable ``` - **Possible Causes** **zlib** is not installed. - **Solutions** Solution 1: Run the **apt-get install zlib** command to install **zlib** online. Solution 2: If the software source does not contain **zlib**, download the source code from [http://www.zlib.net/](http://www.zlib.net/). ![](figures/10.png) Then run the following commands to install **zlib** offline: ``` # tar xvf zlib-1.2.11.tar.gz # cd zlib-1.2.11 # ./configure # make && make install ``` After the installation, reinstall Python 3. ## What should I do when the message **No module named '\_ctypes'** is displayed during Python 3 installation? - **Symptom** The following error occurs during Python 3 installation: ``` ModuleNotFoundError: No module named '_ctypes' ``` - **Possible Causes** **libffi** and **libffi-devel** are not installed. - **Solutions** 1. Run the **apt-get install libffi\* -y** command to install **libffi** and **libffi-devel** online. 2. After the installation, reinstall Python 3. ## What should I do when the message **No module named 'Crypto'** is displayed during compilation and building? - **Symptom** The following error occurs during compilation and building: ``` ModuleNotFoundError: No module named 'Crypto' ``` - **Possible Causes** **Crypto** is not installed. - **Solutions** Solution 1: Run the **pip3 install Crypto** command to install **Crypto** online. Solution 2: Install **Crypto** offline. - Download the source code from [https://pypi.org/project/pycrypto/\#files](https://pypi.org/project/pycrypto/#files). ![](figures/en-us_image_0000001053462612.png) - Save the source code package to the Linux server, decompress the package, and run the **python3 setup.py install** command to install **Crypto**. - Rebuild an environment. ## What should I do when the message **No module named 'ecdsa'** is displayed during compilation and building? - **Symptom** The following error occurs during compilation and building: ``` ModuleNotFoundError: No module named 'ecdsa' ``` - **Possible Causes** **ecdsa** is not installed. - **Solutions** Solution 1: Run the **pip3 install ecdsa** command to install **ecdsa** online. Solution 2: Install **ecdsa** offline. - Download the installation package from [https://pypi.org/project/ecdsa/\#files](https://pypi.org/project/ecdsa/#files). ![](figures/en-us_image_0000001053022609.png) - Save the installation package to the Linux server and run the **pip3 install ecdsa-0.15-py2.py3-none-any.whl** command to install **ecdsa**. - Rebuild an environment. ## What should I do when the message **Could not find a version that satisfies the requirement six\>=1.9.0** is displayed during compilation and building? - **Symptom** The following error occurs during compilation and building: ``` Could not find a version that satisfies the requirement six>=1.9.0 ``` - **Possible Causes** **six** is not installed. - **Solutions** Solution 1: Run the **pip3 install six** command to install **six** online. Solution 2: Install **six** offline. - Download the installation package from [https://pypi.org/project/six/\#files](https://pypi.org/project/six/#files). ![](figures/en-us_image_0000001052742629.png) - Save the source code to the Linux server and run the **pip3 install six-1.14.0-py2.py3-none-any.whl** command to install **six**. - Rebuild an environment. ## What should I do when the message **cannot find -lgcc** is displayed during compilation and building? - **Symptom** The following error occurs during compilation and building: ``` riscv32-unknown-elf-ld: cannot find -lgcc ``` - **Possible Causes** The PATH is incorrectly written by **gcc\_riscv32**. There is an extra slash \(/\). ``` ~/gcc_riscv32/bin/:/data/toolchain/ ``` - **Solutions** Modify the PATH by deleting the slash \(/\). ``` ~/gcc_riscv32/bin:/data/toolchain/ ``` ## What should I do when the message indicating Python cannot be found is displayed during compilation and building? - **Symptom** The following error occurs during compilation and building: ``` -bash: /usr/bin/python: No such file or directory ``` - **Possible Cause 1:** Python is not installed. - **Solutions** Install Python by referring to [Installing a Python Environment](basic-os-environment-setup.md#section11255767343). - **Possible Cause 2:** The soft link that points to the Python does not exist in the **usr/bin** directory. ![](figures/en-us_image_0000001055372855.png) - **Solutions** Run the following commands to add a soft link: ``` # cd /usr/bin/ # which python3 # ln -s /usr/local/bin/python3 python # python --version ``` Example: ![](figures/en-us_image_0000001055012855.png) ## What should I do when an error with **lsb\_release** occurs during **kconfiglib** installation? - **Symptom** The following error occurs during **kconfiglib** installation: ``` subprocess.CalledProcessError: Command '('lsb_release', '-a')' returned non-zero exit status 1. ``` - **Possible Causes** The Python version matched with the **lsb\_release** module is different from the current Python version. - **Solutions** Run the **find / -name lsb\_release** command, for example, **sudo rm -rf /usr/bin/lsb\_release** to locate and delete **lsb\_release**.