Building a Max Standalone using Flucoma externals

Hi all,

I’m trying to build a Max Standalone using Flucoma externals, such as fluid.mlpclassifier~ and fluid.mlpregressor~. However, even though I create a project and consolidate with all dependences, I get these errors (see attachments).

I’m on Mac M2 Tahoe 26.2 and Max 9.1.2

Does anyone have experience with this, or have successfully managed to build a Max Standalone using Flucoma externals?

Thanks!

Screenshot 2026-01-19 at 12.54.06

Screenshot 2026-01-19 at 12.54.24

Screenshot 2026-01-19 at 12.54.32

Francesco

@fra.dimaggio It’s a known issue. To fix it, create a file named openactions.txt at the root of your project folder, and copy the following lines in it:

max objectfile fluid.dataset~ fluid.libmanipulation fluid.dataset~;
max objectfile fluid.labelset~ fluid.libmanipulation fluid.labelset~;
max objectfile fluid.kdtree~ fluid.libmanipulation fluid.kdtree~;
max objectfile fluid.kmeans~ fluid.libmanipulation fluid.kmeans~;
max objectfile fluid.skmeans~ fluid.libmanipulation fluid.skmeans~;
max objectfile fluid.knnclassifier~ fluid.libmanipulation fluid.knnclassifier~;
max objectfile fluid.knnregressor~ fluid.libmanipulation fluid.knnregressor~;
max objectfile fluid.normalize~ fluid.libmanipulation fluid.normalize~;
max objectfile fluid.standardize~ fluid.libmanipulation fluid.standardize~;
max objectfile fluid.robustscale~ fluid.libmanipulation fluid.robustscale~;
max objectfile fluid.pca~ fluid.libmanipulation fluid.pca~;
max objectfile fluid.mds~ fluid.libmanipulation fluid.mds~;
max objectfile fluid.umap~ fluid.libmanipulation fluid.umap~;
max objectfile fluid.grid~ fluid.libmanipulation fluid.grid~;
max objectfile fluid.datasetquery~ fluid.libmanipulation fluid.datasetquery~;
max objectfile fluid.mlpregressor~ fluid.libmanipulation fluid.mlpregressor~;
max objectfile fluid.mlpclassifier~ fluid.libmanipulation fluid.mlpclassifier~;
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Thanks @felipetovarhenao, it works!

@tremblap @weefuzzy On a similar note, I’m noticing this actually doesn’t work when building a standalone on Windows. Not sure if either of you would have a way of trying it out but I’d be interested in knowing how to make it work.

@rodrigo.constanzo probably has found a way…

@tremblap just figured it out. For some reason, Max doesn’t include openactions.txt as part of the init/ folder, so the file mappings are missing. The solution is to manually include it in the init folder after build.

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