# \[build/debug\] Command failed - postbuild-win.bat

**URL:** <https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840>\
**Category:** Windows\
**Created:** [16 November 2023 18:43 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840 "2023-11-16T18:43:42Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![nsdp](https://avatars.discourse-cdn.com/v4/letter/n/b9bd4f/32.png) [@nsdp](https://iplug2.discourse.group/u/nsdp)\
**Post date:** [16 November 2023 18:43 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840/1 "2023-11-16T18:43:42Z")

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I am getting this error trying to build the midi effect vst3 on windows:

```auto
Severity	Code	Description	Project	File	Line	Suppression State
Error	MSB3073	The command "CALL "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\scripts\postbuild-win.bat" ".vst3" "MyMidiEffect" "x64" "1" "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\build-win\vst3\x64\Debug\MyMidiEffect.vst3" "C:\Program Files\VstPlugins" "C:\Program Files\VstPlugins" "C:\Program Files\Common Files\VST3" "C:\Program Files\Common Files\VST3" "C:\Program Files\Common Files\Avid\Audio\Plug-Ins" "C:\Program Files\Common Files\Avid\Audio\Plug-Ins" "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\build-win" "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\projects\..\..\..\Scripts\icons\VST_Logo_Steinberg.ico" "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\projects\..\..\..\Dependencies\IPlug\AAX_SDK\Utilities\PlugIn.ico" "C:\Users\username\Dev\iPlug2\Examples\MyMidiEffect\projects\..\..\..\Scripts\create_bundle.bat"
:VCEnd" exited with code 4.	MyMidiEffect-vst3	C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets	161	

```

I would really appreciate some help as I am a total newbie with both iPlug2 and Visual Studio/Windows coding. Thanks in advance

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<div class="post-metadata">

**Author:** ![nsdp](https://avatars.discourse-cdn.com/v4/letter/n/b9bd4f/32.png) [@nsdp](https://iplug2.discourse.group/u/nsdp)\
**Post date:** [2 December 2023 18:35 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840/2 "2023-12-02T18:35:41Z")

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Can I get some help on this one?  
I haven’t been able to do anything with iPlug2 yet

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<div class="post-metadata">

**Author:** ![JohnCrosby](https://yyz2.discourse-cdn.com/free1/user_avatar/iplug2.discourse.group/johncrosby/32/30_2.png) [@JohnCrosby](https://iplug2.discourse.group/u/JohnCrosby)\
**Post date:** [2 December 2023 20:22 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840/3 "2023-12-02T20:22:07Z")

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VST folder write privileges?  
Check if the plugin exists in the Build folder in your project folder.

Discord [iPlug2](https://discord.gg/chmdkTYEAn) is a bit more alive than this forum.

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<div class="post-metadata">

**Author:** ![olilarkin](https://yyz2.discourse-cdn.com/free1/user_avatar/iplug2.discourse.group/olilarkin/32/2_2.png) [@olilarkin](https://iplug2.discourse.group/u/olilarkin)\
**Post date:** [2 December 2023 21:50 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840/4 "2023-12-02T21:50:36Z")

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Yeah it looks like the post build script is failing since it can’t write to the `"C:\Program Files\Common Files\VST3"` folder

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<div class="post-metadata">

**Author:** ![nsdp](https://avatars.discourse-cdn.com/v4/letter/n/b9bd4f/32.png) [@nsdp](https://iplug2.discourse.group/u/nsdp)\
**Post date:** [2 December 2023 23:51 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840/5 "2023-12-02T23:51:56Z")

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Yes, finally it builds! Thank you guys.  
I’ll get on the discord then