# CLI Flash Error - Invalid Version

**URL:** <https://community.particle.io/t/cli-flash-error-invalid-version/65476>\
**Category:** Particle Workbench\
**Created:** [September 21, 2023, 9:51pm UTC](https://community.particle.io/t/cli-flash-error-invalid-version/65476 "2023-09-21T21:51:52Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![nthui](https://avatars.discourse-cdn.com/v4/letter/n/71c47a/32.png) [@nthui](https://community.particle.io/u/nthui)\
**Post date:** [September 21, 2023, 9:51pm UTC](https://community.particle.io/t/cli-flash-error-invalid-version/65476/1 "2023-09-21T21:51:52Z")

</div>

On Tracker SoM, device OS 5.3.0, flashing locally gives me the following error:

```auto
:::: STARTING FLASH

:::: NOTICE:
:::: Your first flash may take up to 10m to complete - during
:::: this time, your device may regularly change LED states
:::: as Device OS upgrades are applied.
Flashing tracker [redacted]
Invalid version. Must be a string. Got type "object".
make[1]: *** [C:\Users\[redacted]\.particle\toolchains\buildscripts\1.15.0\Makefile:167: flash-app] Error 1
make[1]: Leaving directory '/cygdrive/d/workspace/[redacted]/smartfin/smartfin-fw3'
make: *** [C:\Users\[redacted]\.particle\toolchains\buildscripts\1.15.0\Makefile:111: flash-user] Error 2

 * The terminal process "C:\Users\[redacted]\.particle\toolchains\buildtools\1.1.1\bin\bash.exe '-c', 'make -f 'C:\Users\[redacted]\.particle\toolchains\buildscripts\1.15.0\Makefile' flash-user'" terminated with exit code: 2. 
 * Press any key to close the terminal.

```

This persists after deleting ~/.particle and reinstalling the Particle toolchains. This was working correctly as of 2023-09-12T14:46-07:00, as I was able to build and flash my project to the TSoM eval board.

System info:  
Win10.0.19045 Edu  
CPU: AMD Ryzen9 3950x  
VS Code 1.82.2  
Workbench Core: v1.16.9

Does anyone have insight into how to resolve this? I've been noticing a lot of issues with the toolchains not quite updating themselves completely lately and breaking, but this feels different.

---

<div class="post-metadata">

**Author:** ![nthui](https://avatars.discourse-cdn.com/v4/letter/n/71c47a/32.png) [@nthui](https://community.particle.io/u/nthui)\
**Post date:** [September 22, 2023, 6:58pm UTC](https://community.particle.io/t/cli-flash-error-invalid-version/65476/2 "2023-09-22T18:58:49Z")

</div>

To get things working, I deleted ~/AppData/Local/particle, ~/.particle, reinstalled the workbench, and logged back in to Particle. I suspect logging in did the trick, since it didn't work prior to that.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/particle/original/3X/3/2/3291e3c9351789fe8620ae5bcec8d3fec67ff221.png) [@system](https://community.particle.io/u/system)\
**Post date:** [October 23, 2023, 4:58am UTC](https://community.particle.io/t/cli-flash-error-invalid-version/65476/3 "2023-10-23T04:58:54Z")

</div>

Closed on October 23, 2023, 4:58am UTC

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