ERROR: Category 'benchmarking' from plugin 'com.vernalis.knime.perfmon' could not be created in parent path '/community/verna...

Community Extensions
1

Hi Vernalis nodes lovers!

After I upgraded KNIME to version 2.12.0 I'm experiencing the following errors everytime I launch KNIME.

 

ERROR RepositoryManager Category 'testing' from plugin 'com.vernalis.knime.perfmon' could not be created in parent path '/community/vernalis'.

ERROR RepositoryManager Category 'benchmarking' from plugin 'com.vernalis.knime.perfmon' could not be created in parent path '/community/vernalis/testing'.

 

Additionally I see 6 vernalis nodes (3 Benchmark start and 3 Benchmark end nodes) as “Uncategorized” in the node repository windows. Does anybody know why this happens?

Thanks in advance,

Gio

2

Gio,

I can guess why this is - I will take a look and get it fixed sometime pretty soon (hopefully within the next few days). 

Thanks for bringing it to our attention!

Steve

3

Very good Steve,

Thank you!

4

Gio,

I've had a quick look and at the moment I cant actually reproduce this on either windows or ubuntu.  Could you tell me

  • what OS you are running under (not that I can think that it should make any difference!)
  • whether you have the rest of our nodes in their rightful place in /community/vernalis
  • do you have our plugin from the nightly build or the stable?

Thanks again,

Steve

5

Gio,

Dont worry about the questions above - I think it should be now fixed in the nightly build, and in the next hour or two in the stable builds.  The fixed version is 1.4.1 (see the changelog).  Sorry about that - please do let us know if this has or hasnt fixed the problem for you!

For info (dont read on if you have no technical interest in the solution!), the problem was caused by a missing dependency between our plugins, so it depended on which order KNIME happened to load them as to whether or not the Vernalis node folder was created before some of the nodes where put in it.  If you were lucky (as I happen to have been on three different test installations I tried it on...!), then the folder is created before the nodes are placed, and everything is happy.  If you were unlucky (as I assume you were...), then the KNIME attempts to place the nodes in a non-existant folder, and you see the errors you saw, and the nodes are relocated into the 'Uncategorized' folder.

Thanks again,

Steve

6

Dear Steve,

For several reason I had to re-upgrade my KNIME version (from 2.11.3 to 2.12.0) and after this newfresh upgrade I didn't re-experienced the problem, even before you made the new vernalis builds available. I suppose this second time I was lucky (meaning the folder was created before the nodes were placed) as you in your previous attempts.

In any case thank you so much for your quick answers and support.

Cheers,

Gio

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