Application Modeler: Failed to load specification: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argu

Rhythm_Wang — Tue, 08 Sep 2026 03:25:07 GMT

Hi Fiori product team, I'm facing error: Application Modeler: Failed to load specification: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined Check the status in Output or Application Info.

Output error:

2026-09-08 11:17:51.651 [error] AppFolders: Error storing search cache: TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined.

This issue happened like 2ds ago, I guess the latest 2 version (1.32.0 and previous) have bugs.

VS Code version: 1.136.1

Nodejs version: v24.19.0

Win x64

Re: Application Modeler: Failed to load specification: Ty...

klbi — Thu, 15 Oct 2026 07:01:52 GMT

I had the same error on macos, and diving into the issue I found that it was a corrupted cache of the ui5 libraries.

I fixed it locally with the following terminal command:

node -e "const fs=require('fs'),os=require('os');const p=os.homedir()+'/.fioritools/specification-dist-tags.json';let v=JSON.parse(fs.readFileSync(p,'utf8'));fs.writeFileSync(p,JSON.stringify(Array.isArray(v)?v[0]:v,null,4));console.log('fixed:',p)"

After that, the plugin is working again for me.

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Application Modeler: Failed to load specification: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argu

Re: Application Modeler: Failed to load specification: Ty...