If you're new to opensim and not sure where to get items or you need ideas to start creating, you can visit our freebie center and many of our shops throughout our regions. You can also visit any of the places that give away freebies. Click this icon below to get started. I started the search for you.

 
Solve the issue of "opensim missing physics_convex block"
Click the cube to download the 00_PhysicsCube.dae file (2.48kb)
 
Running into that issue can be a real time consumming issue as well as frustrating. Especially when it's a model you really took the time to create and want to see in-world. I have found this method to work for me 99.99% of the time. I hope it helps you as well. I have also included step by step screenshots as well. It may not work for everyone... but it works for me and I hope it works for you!

1.) Browse to the model you're uploading, then go to the physics tab and choose the load from file and browse to the "00_PhysicsCube.dae" you just downloaded from this page.
2.)Go back to Level of Detail tab and Choose "USE LOD ABOVE"
3.) Click Generate Normals and upload.

REMINDER: If you want textures uploaded go to "Upload Options" and make sure to check to include textures.

...And that should do it!!! Hope this helps!

 

 
 
 
 
Here is a quick video showing you the steps as mentioned above
 
For more tips, tricks and tutorials, visit my "Tutorial" channel by clicking below