Cannot locate suitable C compiler VS2019

Hello, this is regarding nuitka version 0.6.7 obtained via pip on Windows Server 2019.

The precise error can be found in this pipeline output:

scons: warning: MSVC_USE_SCRIPT set to False, assuming environment set correctly.
File "C:\HOSTED~1\windows\Python\3794D4~1.7\x64\lib\SITE-P~1\nuitka\build\SINGLE~1.SCO", line 521, in createEnvironment
Error, cannot locate suitable C compiler. You have the following options:

a) If a suitable Visual Studio version is installed, it will not be located
   automatically, unless you install pywin32 for the Python installation
   below "C:\hostedtoolcache\windows\Python\3.7.7\x64".

b) To make it find Visual Studio without registry execute from Start Menu
   the 'Visual Studio Command Prompt' or "vcvarsall.bat". That will add
   Visual Studio to the "PATH". And it then will be detected.

c) Install MinGW64 to "C:\MinGW64" or "\MinGW", where then it is automatically
   detected or add it to PATH before executing Nuitka. But be sure to pick the
   proper variant (32/64 bits, your Python arch is 'x86_64'), or else cryptic errors
   will be shown.

The build machine has Visual Studio 2019 Enterprise installed, and as part of suggestion b) provided by the error, I run this command beforehand (but still encounter this error): C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat

Also tried pip install pywin32 beforehand to address suggestion a), but this also leads to same error.

[lxbrass]

This worked for me, one month ago (mid April 2020) using nuitka 0.6.7:

1. Install Microsoft - Visual Studio Build Tools 2019, default options should be enough. I changed the install location. [image: image.png]

2. Find vcvarsall.bat in your installation, I found it in F:\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build

3. Choose your build target (x86 or x64) to match the Python version/platform of your project.

4. Open a command environment there and execute vcvarsall.bat, with the proper arguments for your target, to set the environment variables.

5. In the same command window navigate to the location of your Python project.

6. Compile with Nuitka.

7. If that works, add the call to vcvarsall.bat to your build scripts… or the build system complexity layer of your choice 😉

Cheers.

On Sun, May 10, 2020 at 7:27 PM Daniel Nowak [e-mail] wrote:

Hello, this is regarding nuitka version 0.6.7 obtained via pip on Windows Server 2019.

The precise error can be found in this pipeline output https://github.com/Fuzzwah/race-info/runs/661598630?check_suite_focus=true#step:4:9 :

in createEnvironment Error, cannot locate suitable C compiler. You have the following options:

a) If a suitable Visual Studio version is installed, it will not be located automatically, unless you install pywin32 for the Python installation below “C:\hostedtoolcache\windows\Python\3.7.7\x64”.

b) To make it find Visual Studio without registry execute from Start Menu the ‘Visual Studio Command Prompt’ or “vcvarsall.bat”. That will add Visual Studio to the “PATH”. And it then will be detected.

c) Install MinGW64 to “C:\MinGW64” or “\MinGW”, where then it is automatically detected or add it to PATH before executing Nuitka. But be sure to pick the proper variant (32/64 bits, your Python arch is ‘x86_64’), or else cryptic errors will be shown.

The build machine has Visual Studio 2019 Enterprise https://github.com/actions/virtual-environments/blob/master/images/win/Windows2019-Readme.md#visual-studio-2019-enterprise installed, and as part of suggestion b) provided by the error, I run this command beforehand (but still encounter this error): C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\Tools\VsDevCmd.bat

Also tried pip install pywin32 beforehand to address suggestion a), but this also leads to same error.

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[kayhayen]

@lowlyocean I am switching to https, just did so for factory branch. I hated it for writing if I recall correctly, because it needs more than a simply ssh key, but I will sort that out I guess