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clavin-xlnx / RapidWright-binder

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Error message when executing BasicRouting example #1

Open restelli opened 5 years ago

restelli commented 5 years ago

I encounter the following error (Null pointer exception) when running the first cell of the example exercise BasicRouting.ipynb:

src = DesignTools.createPinAndAddToNet(src_ff,"Q",net)
    at com.xilinx.rapidwright.design.DesignTools.createPinAndAddToNet(DesignTools.java:543)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)

java.lang.NullPointerException: java.lang.NullPointerException

The error is present both when I run the cell in the provided binder (JRE-8) and when I run it on my machine (JRE-11) I am using the following stand alone RapidWright jar: rapidwright-2018.3.2-standalone-lin64.jar

Thanks in advance for your reply, and thanks for posting this type of tutorials: they are a fantastic complement to the documentation.

restelli commented 5 years ago

Update. The error goes away if I install RapidWright using rapidwright-installer.jar and create the jupyter kernel using the command

java com.xilinx.rapidwright.util.RapidWright --create_jupyter_kernel
seifoorisara commented 5 years ago

Hi, I want to use RapidWright in UBUNTU 18.04. I run these instructions but encounter the following errors: What can I do?

java com.xilinx.rapidwright.util.RapidWright --create_jupyter_kernel Wrote Jupyter Notebook Kernel File: '/home/user/jython27/kernel.json'

You can install the RapidWright (Jython 2.7) kernel by running: $ jupyter kernelspec install /home/user/jython27 and list currently installed kernels with: $ jupyter kernelspec list (base) user@parsapc1000:~$ sudo jupyter kernelspec install /home/user/jython27 [sudo] password for user: Error executing Jupyter command 'kernelspec': [Errno 2] No such file or directory

seifoorisara commented 5 years ago

Can any body help me? I spend a lot of time to correct this issue but it did not solved.

restelli commented 5 years ago

seifoorisara, have you checked if the folder jython27 has been written on the path /home/user/jython27 ?