【Power Shell】Invoke-Expression ，Invoke-Expression -Command $activateCommand； Error or power shell failed to activate the virtual environment

power Shell As soon as you open it, there is a red letter error ：

Invoke-Expression :  The position of   That's ok :1  character : 1164
+ ... \Xshell 7;C:\Program Files (x86)\NetSarang\Xftp 7;"C:\Program Files\N ...
+                                                        ~~~~~~~~~~
 An expression or statement contains an unexpected tag “C:\Program”.
 The position of  D:\Programe\Anaconda\shell\condabin\Conda.psm1:109  character : 15
+               Invoke-Expression -Command $activateCommand;
+               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ParserError: (:) [Invoke-Expression], ParseException
    + FullyQualifiedErrorId : UnexpectedToken,Microsoft.PowerShell.Commands.InvokeExpressionCommand

I use a lot here It's useless The way to ：
①conda init
②conda install -n root -c pscondaenvs pscondaenvs
③ hold Invoke-Expression -Command $activateCommand;
Change to

    If(-not [String]::IsNullOrEmpty($activateCommand)) {
          Invoke-Expression -Command $activateCommand;
    }

Later, when I checked, I found that many of them had a kind of thinking , That is, there is something wrong with the system environment variables ;
So I revised it along this line
So next, we locate the wrong information

Inside these signs , These content , It is actually a system environment variable path What's in it ：



And then we put

This variable is found ：
Then we find that this variable is ：

C:\Program Files\NVIDIA GPU ComputingToolkit\CUDA\v11.3\lib\x64;
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\bin;
C:\ProgramFiles\NVIDIAGPUComputingToolkit\CUDA\v11.3\common\lib\x64;
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.3\bin\

Then let's take a look at the file manager

We found that there was 2 individual cuda, Now that's it ,11.3 This environment variable is wrong again , Let's just put it directly CUDA\11.3 Delete the environment variable of . Just use cuda10.1【 Because many of my deep learning environments are installed torchgpu The version is cu101 Of , So I keep it cu101 Environment variables of 】
That's it after deletion ：

You can see cuda Not in the back

This environment variable has been deleted for me , Although the final result is the same as some of the information reported in error , Because I forgot to delete the previous environment variables in the screenshot .
But this error report has been solved for us , There will be no more errors when opening ：

I saw many people on the Internet who didn't use my same solution , Maybe it's because they didn't pretend like me 2 Versions CUDA, So there is no conflict . So , If you are a friend of deep learning power shell There is a problem at the beginning , It is likely that there is the same as me cuda Environment variable conflict problem , Just report the error

Delete the environment variables here 【 The premise is that you are also in conflict with multiple versions of environment variables 】
Or is it , You can consider adjusting the position of environment variables .
that , This problem is solved .

End of this period , See you next time .