The project cannot be started

[Heachy]

When start Polypheny-DB

using its main-Class (dbms/src/main/java/org/polypheny/db/PolyphenyDb.java)

I didn't change anything after importing the project, and I got an error when running the startup class.

Is it because I haven't configured anything? It doesn’t seem to be written in the official documentation.

Hope to get help！ QAQ

[hennlo]

Hi @Heachy I see that you are using IntelliJ we have provided a very small setup guide for this.

After having followed these steps you can use our gradle run-dionfigurations within IntelliJ to start Polypheny.
Could you try this.

[hennlo]

Correct the Polypheny-DB configuration in gradle is the way to go.
But yes indeed seems odd.
Let me try reproducing it and I'll get to you, this is nothing we have observed in that context before.

[Heachy]

Thank you for your help！

That means I need to run the Polypheny-DB configuration in gradle first and then run the main function. When this happens now, it’s because there is something in the Polypheny-DB configuration that I haven’t modified, right?

[hennlo]

No actually no need to run the main() function if you execute the preconfigured gradle config provided by us. The system automatically starts

[vogti]

Hi @Heachy The problem is, that you execute the main-Method without building Polypheny-DB first. Polypheny is a modular system consisting of multiple moduls / plugins. The error you get indicates, that the system is unable to find a plugin that provides an implementation for the catalog. To avoid this, either run Polypheny by executing ./gradlew run or ./gradlew runReset or use the autoconfigured run configurations in IntelliJ (as mentioned by @hennlo). Please find below a screenshot where to find these run configurations.

[Heachy]

Thanks for your advice！ @vogti

But I only have two configurations here.

Then when I run Polypheny-DB configuration, it displays like this:

This is the result after running ./gradlew run, it has been stuck at 99%

Or does this mean that the entire project is running?

But when I access http://localhost:7659/ it still doesn’t work.

[Heachy]

Thank you for the help！@vogti @hennlo

The project is already running:

My running process is:

1. Run Polypheny-DB in gradle, but an error is reported
2. When running the main function, an error is also reported.
3. I ran ./gradlew run and it got stuck at 99% and ./gradlew runReset got stuck at 97%, but then I just ran the main function again and it was fine.

I think it’s quite amazing haha