Vuforia Studio login error

[srscholz]

Been using Vuforia studio for about 2 months now.  Not sure if it is trial or not.  Yesterday, logged in no problem.  Later in the day an error occurred when try to save a project.  Closed application.  Haven't been able to log in since.  See log files attached.  First from early in the day.  Second showing error at login

[sdidier]

Hello,

The exception is : 

[2019-08-26T16:13:51.466Z] Starting node.exe
internal/modules/cjs/loader.js:584
    throw err;
    ^

Error: Cannot find module 'jsonfile'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:582:15)
    at Function.Module._load (internal/modules/cjs/loader.js:508:25)
    at Module.require (internal/modules/cjs/loader.js:637:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at Object.<anonymous> (C:\Users\srscholz\AppData\Roaming\VuforiaStudio\studio-download.vuforia.io\node_modules\fs-extra\lib\json\jsonfile.js:4:18)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)

It seems a file is missing or it is not accessible.

I saw that it is Vuforia Studio 8.4.5.

Vuforia Studio 8.4.7 is available.

I would recommend these steps :

1. Backup Vuforia Studio files in this folder in Windows %USERPROFILE%\Documents\VuforiaStudio
2. Download last version from PTC Download page
3. Install it to do the update

Best regards,

Samuel

[srscholz · Accepted solution]

Yes, updating the software seemed to take care of the issue.  Though I took a slightly different path to get there.  I was able to revert back to an earlier version.  That allowed to me to open the app again.  Then I updated software from within the app.  All seems to be good now.

thanks again.

stuart