@kbsniquer : Please check if your bundles are up and Active. Specifically check the bundle where you have defined the BreadCrumbModel sling model class.
I am sure there are some errors and once you resolve them and bundle(s) are in Active status, the errors would go away.

thanks.

Hi @kbsniquer Can you check if the bundle is in active state (http://localhost:4502/system/console/bundles). Also you can check if the sling model is registered here (http://localhost:4502/system/console/status-slingmodels) and you are using the same package name in the sightly code.

Regards,

Ayush

As clear from log that it is a compilation error on html 

Compilation errors in org/apache/sling/scripting/sightly/apps/xxxx__002d__xxxx/components/breadcrumb/breadcrumb__002e__html.java: Line 136, column 7788 com.xxxx.xxxx.core.models.BreadCrumbModel

cannot be resolved to a type

check breadcrumb.html if the Java class that you are calling is correct? 

com.xxxx.xxxx.core.models.BreadCrumbModel

can you also share how you are calling Java class on html?

There can be below things:

1. Check if specific bundle is active

2. It can be n issue with Breadcrum sling models. It is not able to properly injected due to some invalid code written within slimg model.

3. Did we provide the correct package and Class name in sightly.

4. There can be any issue with on of the service which is getting reference in Breadcrumn model 

5. Some dependency bundles are not available.

It can be 4th and 5th point in your case

@kbsniquer @Please share screenshot for the bundle having dependency in red.

Goto /console/bundles.. select project having breadcrumb class, click on that project and check if something highlighted there in red

@kbsniquer Did you find the suggestions from users helpful? Please let us know if more information is required. Otherwise, please mark the answer as correct for posterity. If you have found out solution yourself, please share it with the community.