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Bug URP Fallback error loading takes 30mins to an hour when building Vesion 2021.3.21

Discussion in 'Editor & General Support' started by ProgrammingWithEDM, Oct 25, 2023.

  1. ProgrammingWithEDM


    Sep 2, 2021
    Hello I am having issues when I am building a project it takes forever to build. and usually takes the longest on this part. here is a image. I am using URP and just switched from using github to plastic SCM, I had no problems with github building but now I am. I also just download map magic which seems to get an error whenever it finally finishes building but I cant remember the error. It also gets stuck on loading URP for speed tree 8 as shown in the second image

    Attached Files:

    Last edited: Oct 25, 2023
  2. Kurt-Dekker


    Mar 16, 2013
    Baking lighting can take an incredible amount of time (easily hours and hours).

    Either turn off lightmap baking or bake it by hand first and see if that's your problem.


    How to troubleshoot build failures:

    First, make a blank project with a single blank scene and prove that it builds successfully.

    If the blank project does NOT build, go fix your Unity installation or your other tools, such as Android SDK, NDK, JDK, etc. It may even be necessary to change to a different version of Unity3D. It is generally best to stay with LTS versions of Unity3D.

    Until you can build a blank project to the target platform, don't fiddle with anything else.

    Once you can build a blank project, now bisect the problem by bringing over parts of your current project and building it one subsystem at a time, perhaps stubbing things out that might trigger compiler errors.

    Most often things that prevent building are third-party libraries such as Firebase.

    Once you identify the subsystem, go to the documentation for it and make sure you are doing it correctly.

    It may also be helpful to work through a tutorial or two for whatever subsystem is making the build fail.

    Android build not building:

    Recently (circa July 2022) there have been reports of Unity's installer failing to install the Android Tools.

    Here was how I brought up Unity2020.3.41 and the Android SDK 31 on October 30, 2022 (edited on August 23, 2023 to include Android SDK 33...):

    Android Gradle errors and other related stuff:
  3. ProgrammingWithEDM


    Sep 2, 2021
    how do i stop it from baking when building?