Why can't I read variable values anymore? - swift

So I’ve been having some sort of issue with my iOS project.
I’m no longer able to debug properly on xcode the po command will no longer work.
this is what I get when i try to use “po”
error: expression failed to parse:
error: virtual filesystem overlay file '/Users/distiller/Library/Developer/Xcode/DerivedData/SendBirdCalls-dbjqlfwikkijbkgvuxucoxlahpdv/Build/Intermediates.noindex/ArchiveIntermediates/SendBirdCalls/IntermediateBuildFilesPath/SendBirdCalls.build/Release-iphoneos/SendBirdCalls.build/all-product-headers.yaml' not found
error: virtual filesystem overlay file '/Users/distiller/Library/Developer/Xcode/DerivedData/SendBirdCalls-dbjqlfwikkijbkgvuxucoxlahpdv/Build/Intermediates.noindex/ArchiveIntermediates/SendBirdCalls/IntermediateBuildFilesPath/SendBirdCalls.build/Release-iphoneos/SendBirdCalls.build/all-product-headers.yaml' not found
error: couldn't IRGen expression. Please check the above error messages for possible root causes.
can someone clarify what is going on?
i’ve already tried to clean derived data.
I also tried to follow these steps just to end up with another problem.
unable to debug some variables

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Not sure if this is enough context, but I'm happy to provide the reciprocity to get some help with figuring it out.
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https://docs.mongodb.com/realm/cli/realm-cli-apps-create/
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I have already had a project name "test" but I have deleted it (Simply deleting the folder which might have been the mistake) but I still get the error message. The error occurs always, no matter the name or path/folder at the moment.
if realm-cli push is used it seems to use the old "test" application since the name is filled out when going through the [options]
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I am new to Apache-Kafka.I am using:
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Earlier i was able to create and list topics on the same machine.
After i restarted my system, i am unable to create and list topics.
I am getting below errors.
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Topic create error
List error:
List Topic Error
The error looks pretty simple. I googled a lot but unfortunately, i am not able to get a solution to this.
I followed the below link for configurations:
http://programming-tips.in/kafka-set-up-apache-kafka-on-windows/
Looking forward for some expert advice.
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There is something wrong with the '-' in the example code.

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Warning: include(/home/davidkag/public_html/prototype/application/models/DbTable//Users.php) [function.include]: failed to open stream: No such file or directory in /home/davidkag/public_html/prototype/library/Zend/Loader/Autoloader/Resource.php on line 176
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are causing this problem.
The error is caused at this particular line in my code:
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I would start by creating a new test script, with one line, and see what you get:
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Then, remove the double slashes:
include '/home/davidkag/public_html/prototype/application/models/DbTable/Users.php';
If it's still giving you that warning, then either your path is wrong or your file permissions need to be eased.
P.S. You said 'protected pages' -- are those perhaps not in public_html?
I finally found my problem.It was a case issue.Talk of developing on windows and deploying on linux