After I downloaded the example from Acumatica/Help-and-Training-Examples: Examples from the Acumatica ERP developer guides and training courses while I am running code, I get an error message.
The type or namespace name 'PX' could not be found (are you missing a using directive or an assembly reference?)
definitely I am missing the references which is clear, from where should I get these.
here is the version I got installed
Acumatica Cloud ERP 2025 R1
Build 25.100.0054
Best answer by aiwan
No problem at all, we all start somewhere!
You might be experiencing issues because you have it downloaded to C:\Program Files.
You should try to create an instance in just C:\
Yes those are the ones! They guide you through environment set up too.
If you have not opened a local website in your VS instance, you will get namespace errors.
You should create an extension library from a customisation project, then open the .sln file from that customisation project.
Alternatively, you can open the instance as a local website from VS.
Could oyu share your ‘Solution Explorer’ please?
Also, by opening the website I meant this:
Then you should select the instance of Acumatica that you want to open:
Which then lets you access the Bin folder, and reference the .dll files
Also, I suggest you follow the Open University T-series courses for Acumatica development, you will learn a lot.
after I Installed the ERP which is actually referencing under IIS i opened the folder..
but in your screenshot i see the proper sln is loaded.
when trying to open any of these i get error
C:\Program Files\Acumatica ERP\AcumaticaERP\App_Data\WebsiteSolution\Site : error : Error opening web C:\Program Files\Acumatica ERP\AcumaticaERP\App_Data\WebsiteSolution\Site\. Unable to open the Web site 'C:\Program Files\Acumatica ERP\AcumaticaERP\App_Data\WebsiteSolution\Site'. The Web site 'C:\Program Files\Acumatica ERP\AcumaticaERP\App_Data\WebsiteSolution\Site' does not exist.
do you mean these courses”
https://openuni.acumatica.com/learning-paths/developer-learning-paths/development/
No problem at all, we all start somewhere!
You might be experiencing issues because you have it downloaded to C:\Program Files.
You should try to create an instance in just C:\
Yes those are the ones! They guide you through environment set up too.
+4
You should create an extension library from a customisation project, then open the .sln file from that customisation project.
Here’s what
To Move a Code Item to the Extension Library
do you mean these courses”
https://openuni.acumatica.com/learning-paths/developer-learning-paths/development/
Correct. I would start with T190: T190 Quick Start in Customization 2025 R1
It is more of a crash course/bootcamp kind of course but will set to up for T2xx pathway.
Next continue with T200 through T250.
Welcome to the community and happy learning.
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