Mainline module fails to build

[cdesai]

Hello,

I'm trying to build the latest tags released for mainline modules.

I don't see much documentation for those publicly, if there's something that I missed, would anyone mind linking to it?

I chose the tag `aml_per_331512020`, which has the decription "aml_per_331512020 (9532533,com.google.android.permission)", which I assumed to mean to refer to AOSP module "com.android.permission"

I inited a tree with that, then:
```
export TARGET_BUILD_APPS=com.android.mediaprovider

packages/modules/common/build/build_unbundled_mainline_module.sh --product module_arm64 --dist_dir out/mainline_modules
```

This leads to an error:
```
packages/providers/MediaProvider/src/com/android/providers/media/util/PermissionUtils.java:29: error: cannot find symbol
import static android.Manifest.permission.READ_MEDIA_VISUAL_USER_SELECTED;
```

Reverting https://android.googlesource.com/platform/packages/providers/MediaProvider/+/88b1f1fbed47cc6db7c795134a2a980067332ce5 makes it build.

Are these the correct steps? Is the build failure expected?

[cdesai]

I do see "Added in Android UpsideDownCake" at https://developer.android.com/reference/android/Manifest.permission#READ_MEDIA_VISUAL_USER_SELECTED 

[cdesai]

Copy-paste error above.

I tried to build `aml_mpr_331512020` which says "aml_mpr_331512020 (9567825,com.google.android.mediaprovider)". I said permission above, that was wrong.

Just double checked, that's what I have checked out in my tree.

On Thursday, April 6, 2023 at 1:00:51 AM UTC+5:30 cdesai wrote:

[cdesai]

A developer on my team figured it out, it fixed build errors with another module we were trying to build as well (com.android.permission)

`export UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true # don't rely on prebuilts`

Ref: https://gitlab.com/CalyxOS/calyxos/-/issues/298#note_1366949441