# Error while trying to use melonnpan for predicting metabolites from metatranscriptome data

**URL:** <https://forum.biobakery.org/t/error-while-trying-to-use-melonnpan-for-predicting-metabolites-from-metatranscriptome-data/6810>\
**Category:** MelonnPan\
**Created:** [March 19, 2024, 7:18am UTC](https://forum.biobakery.org/t/error-while-trying-to-use-melonnpan-for-predicting-metabolites-from-metatranscriptome-data/6810 "2024-03-19T07:18:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Rishav\_Sahil](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/rishav_sahil/32/1963_2.png) [@Rishav\_Sahil](https://forum.biobakery.org/u/Rishav_Sahil)\
**Post date:** [March 19, 2024, 7:18am UTC](https://forum.biobakery.org/t/error-while-trying-to-use-melonnpan-for-predicting-metabolites-from-metatranscriptome-data/6810/1 "2024-03-19T07:18:10Z")

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Hello sir,

I am trying to use melonnpan for predicting metabolites using this command

> Rscript /home/sahil/Documents/manuscript/melonnpan/predict\_metabolites.R -i data\_dyadobacter.txt -o Output/

from the metatranscriptome data but got this error:

> Error in melonnpan::melonnpan.predict(metag = metag, output = output, :  
> No common IDs found between training and test data. Execution halted!  
> Execution halted

Here, I am attaching the file, please check and guide me regarding this  
[data\_dyadobacter.txt](https://forum.biobakery.org/uploads/short-url/v81TCNX58hKrBZZRwuFau39RDSd.txt) (4.4 KB)

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<div class="post-metadata">

**Author:** ![Rishav\_Sahil](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/rishav_sahil/32/1963_2.png) [@Rishav\_Sahil](https://forum.biobakery.org/u/Rishav_Sahil)\
**Post date:** [March 21, 2024, 6:50am UTC](https://forum.biobakery.org/t/error-while-trying-to-use-melonnpan-for-predicting-metabolites-from-metatranscriptome-data/6810/2 "2024-03-21T06:50:16Z")

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please reply, it’s urgent.