Fatal Error: java.lang.NullPointerException

[Cathy]

Hello:

Has anyone run into a similar problem?

I've been running some background tests in ENMTools 1.1, using Maxent
3.3.1, as recommended on the ENMTools webpage. I successfully
obtained results for one pair of taxa, but when I went to run the next
pair, I got the following error from the Maxent GUI:

Fatal Error: java.lang.NullPointerException

The log in ENMTools gave me:

Can't open C:/ENMTools1.1/ENMTools/Pithysalbalb_rep1.asc!!

Can't open C:/ENMTools1.1/ENMTools/Pithysalbalb_rep1.asc!!

while executing
"::perl::CODE(0x2495ec4)"
invoked from within
".b5 invoke "
invoked from within
".b5 instate {pressed !disabled} { .b5 state !pressed; .b5 invoke } "
(command bound to event)

And the ENMTools screen showed:

java.io.FileNotFoundException: C:\ENMT\plots\willise.png (The system
cannot find the path specified)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(UnknownSource)
at javax.imageio.stream.FileImageOutputStream.<init>(Unknown Source)
at
com.sun.imageio.spi.FileImageOutputStreamSpi.createOutputStreamInstance(Unknown
Source)
at javax.imageio.ImageIO.createImageOutputStream(UnknownSource)
at javax.imageio.ImageIO.write(UnknownSource)
at density.Display.writeImage(Display.java:401)
at density.Runner.makePNG(Runner.java:1090)
at density.Runner.makePicture(Runner.java:1102)
at density.Runner.makePicture(Runner.java:1049)
at density.Runner.makePicture(Runner.java:1028)
at density.Runner.start(Runner.java:491)
at density.GUI$7.construct(GUI.java.319)
at density.SwingWorker$2.run(SwingWorker.java:108)
at java.lang.Thread.run(Unknown Source)
Fatal Error: java.lang.NullPointerException
Error: Fatal Error

I have tried running ENMTools with Maxent 3.3.2 and 3.3.0beta. I have
tried deleting the maxent.cache files in the layers folder. I have
also tried running it with a set of layers that results in fewer cases
of missing environmental data.

None of these variations offered a solution for me. What is
especially strange is that I am working on two laptops and the same
thing happened on both: I ran an analysis successfully, then the next
analysis gave this error.

Any advice as how to overcome this problem will be greatly
appreciated. Thank you!

Catherine Bechtoldt
University of Illinois

[Cathy]

I wrote to Warren and he said:

"It could be a couple of things, but the easiest to try is just to
manually create a folder within the output directory named "plots" and
see if that fixes it."

I did this and it worked. I also empty the output folder and plots
folder after each run (and save the results to their own folder).

Cathy

[Ken Thompson]

Great post! I had the same issue and this fixed it for me as well.

[Utsav Bahuguna]

Hi, 

I was going through the thread of posts, i tried making folder called "plots" in my destination folder, although the maxent GUI is processing but at the end the error message that pops up is as follows:

Can't open E:/try-max/identity/Habenaria foliosa_rep0.asc! at ENMTools_3-17-2011.pl line 5078, <MAXENTRESULTS> line 31.

Can't open E:/try-max/identity/Habenaria foliosa_rep0.asc! at ENMTools_3-17-2011.pl line 5078, <MAXENTRESULTS> line 31.

    while executing

"::perl::CODE(0x366be34)"

    invoked from within

".b5 invoke "

    invoked from within

".b5 instate {pressed !disabled} { .b5 state !pressed; .b5 invoke } "

    (command bound to event) 

Although i obtain the results of the speceis. But the the IDENTITY test excel sheets are empty.

Any sort of help would be highly appreciated.

Thanks

Regards,

Utsav

[Daniel Romero]

Hi everybody!

I made a tutorial about how to perform the Background similarity test (youtube: https://goo.gl/ncKk3x). The solution of creating a folder called 'plots' inside the output directory folder resolved the issue for me. I talk about this error and other common error (called 5032) when performing the test. Let me know if the tutorial come in handy. 

Regards

Daniel 

[abilio...@gmail.com]

Thank you all very much.