Error with standalone opens in Q# notebooks

[crazy4pi314]

I am super stoked about Q# notebooks, thanks for doing this! 😍

I was just trying out some of the snippets from the Intro To IQSharp notebook and found something I think might be a bug. If you use any open statement in a cell by itself, it returns the following error message: The given key was not present in the dictionary.. It seems to work fine if other operations are in the cell with it, even if they do not use anything from the open. I have included a screencap as well as code snippets and the %version from the notebook.
Thanks!
Sarah

Component	Version
iqsharp	0.5.1903.2902
Jupyter Core	1.1.12077.0

open Microsoft.Quantum.Extensions.Math;
The given key was not present in the dictionary.

open Microsoft.Quantum.Extensions.Diagnostics;
The given key was not present in the dictionary.

open Microsoft.Quantum.Extensions.Math;
​
//operation HelloPi() : Unit {
//    let pi = Microsoft.Quantum.Extensions.Convert.ToStringD(PI());
//    HelloQ(pi);
//}
The given key was not present in the dictionary.

open Microsoft.Quantum.Extensions.Math;
​
operation HelloPi() : Unit {
    let pi = Microsoft.Quantum.Extensions.Convert.ToStringD(PI());
    HelloQ(pi);
}
HelloPi

open Microsoft.Quantum.Extensions.Math;
​
operation HelloPi() : Unit {
}
HelloPi

[bookRa]

I, too am having problems opening one Microsoft.Quantum namespace per code cell as mentioned in IntroToIQSharp/Notebook.ipynb .
Getting the same errors as @crazy4pi314 above.
Some more info:

➜  ~ dotnet --info
.NET Core SDK (reflecting any global.json):
 Version:   2.2.107
 Commit:    2212cac826

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.13
 OS Platform: Darwin
 RID:         osx.10.13-x64
 Base Path:   /usr/local/share/dotnet/sdk/2.2.107/

Host (useful for support):
  Version: 2.2.5
  Commit:  0a3c9209c0

.NET Core SDKs installed:
  2.2.107 [/usr/local/share/dotnet/sdk]

.NET Core runtimes installed:
  Microsoft.AspNetCore.All 2.2.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.2.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.2.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
  https://aka.ms/dotnet-download

Any help would be appreciated. Thanks

-Edit- Also this might be related?

[tcNickolas]

I agree, it would be extremely helpful to be able to open namespaces once in the beginning of the notebook and never return to this again, like we do in projects. In the notebook katas it is particularly painful - it is very hard for the learner to figure out that they need to open namespace in each cell, especially since the reference solutions in the project don't have this need.

[crazy4pi314]

Wanted to bump this again, I really want using Q# in Jupyter to be a good platform for teaching. I am working on lots of notebooks with library use and it is super annoying to have to open the namespaces for each in every cell. If students have any experience with notebooks, its likely in Python where you can just have one cell with imports at the beginning. Not using this same model introduces a lot of confusion.