Android error on reading gltf files when minify is enabled
Closed this issue · 5 comments
I am having this fatal exception on Android if minifyEnabled true is set in build.gradle
10-27 15:38:55.052 16208 16231 E AndroidRuntime: w0.l: w0.l: Couldn't load dependencies of asset: tiles/desert.gltf
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.d.O(Unknown Source:64)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.d.b0(Unknown Source:55)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.d.D(Unknown Source:7)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at q2.b.o(Unknown Source:2)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at p2.n.i(Unknown Source:766)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at v.t.onSurfaceChanged(Unknown Source:28)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1557)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1272)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: Caused by: w0.l: Couldn't load dependencies of asset: tiles/desert.gltf
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.c.b(Unknown Source:67)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.c.g(Unknown Source:10)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.d.c0(Unknown Source:14)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.d.b0(Unknown Source:33)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: ... 6 more
10-27 15:38:55.052 16208 16231 E AndroidRuntime: Caused by: w0.l: w0.k0: Error reading file: tiles/desert.gltf
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at x0.b.a(Unknown Source:14)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.c.b(Unknown Source:32)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: ... 9 more
10-27 15:38:55.052 16208 16231 E AndroidRuntime: Caused by: w0.k0: Error reading file: tiles/desert.gltf
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at w0.r.f(Unknown Source:35)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at c4.b.e(Unknown Source:7)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at c4.a.h(Unknown Source:12)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at c4.a.a(Unknown Source:2)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.c.a(Unknown Source:29)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at r.c.call(Unknown Source:0)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at x0.a$b.call(Unknown Source:2)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at java.util.concurrent.FutureTask.run(FutureTask.java:264)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at java.lang.Thread.run(Thread.java:1012)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: Caused by: w0.k0: Field not found: asset (r3.a)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: Serialization trace:
10-27 15:38:55.052 16208 16231 E AndroidRuntime: {}.asset
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at w0.r.o(Unknown Source:94)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at w0.r.p(Unknown Source:462)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: at w0.r.f(Unknown Source:10)
10-27 15:38:55.052 16208 16231 E AndroidRuntime: ... 10 more
This is the top of desert.gltf
{
"asset" : {
"generator" : "Khronos glTF Blender I/O v3.3.32",
"version" : "2.0"
},
"scene" : 0,
"scenes" : [
{
"name" : "Scene",
"nodes" : [
0,
1,
2,
3
]
}
],
"nodes" : [
{
"mesh" : 0,
"name" : "Circle"
},
...
w0.k0 is com.badlogic.gdx.utils.SerializationException
r3.a is net.mgsx.gltf.data.GLTF
w0.r.o is com.badlogic.gdx.utils.Json.readFields(JsonValue)
If I set minifyEnabled false everything works.
Tried "2.1.0" and "-SNAPSHOT" versions both give this error
I am not sure if this is the correct way but as a workaround put
-keep class net.mgsx.gltf.data.** {
public *;
}
in the proguard-rules.pro file
If this is actually the best solution, I suggest adding it to the install part of the readme
Hi, i tried using proguard for a desktop application some times ago and end up with a configuration like this :
keep 'class com.badlogic.gdx.** { *; }'
keep 'class net.mgsx.gltf.** { *; }'
keepattributes 'Signature'
TBH, there is no point to obfuscate open source library code (libgdx, gdx-gltf, and others...) only your own game code matters.
Please try this configuration and if it works for you i'll add it to the documentation.
Please try this configuration and if it works for you i'll add it to the documentation.
I have the same issue with proguard using, the proposed solution resolves it.
Thanks
TBH, there is no point to obfuscate open source library code (libgdx, gdx-gltf, and others...) only your own game code matters.
I strongly disagree, as little as possible should be put into the proguard rules, otherwise you will miss out on the size reduction, reverse engineering protection, code optimization benefits.