IssueTracker

When there is an error with an AutoMigration (for example, when renaming a column without specifying the old and new column names) the error shown as an empty string in Android Studio.

Test environment:

Room version: 2.4.2
Kotlin version: 1.6.10
ksp version 1.6.10-1.0.4

Android Studio Bumblebee | 2021.1.1 Patch 2
Build #AI-211.7628.21.2111.8193401, built on February 17, 2022
Runtime version: 11.0.11+0-b60-7590822 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 12.3
GC: G1 Young Generation, G1 Old Generation
Memory: 4096M
Cores: 12
Registry: external.system.auto.import.disabled=true
Non-Bundled Plugins: google-java-format (1.15.0.0), wu.seal.tool.jsontokotlin (3.7.2), org.jetbrains.kotlin (211-1.6.10-release-923-AS7442.40), org.intellij.plugins.markdown (211.7142.37), org.toml.lang (0.2.155.4114-211)

Steps to reproduce:

• Clone and build the following project: https://github.com/dturner/RoomAutoMigrationIssue

Expected result:

• Build should fail with an error explaining why the AutoMigration failed, like this:

e: [ksp] /Users/donturner/Code/workspace-android/RoomAutoMigrationIssue/app/src/main/java/com/google/samples/apps/roomautomigrationissue/MainActivity.kt:39: 
            AutoMigration Failure: Please declare an interface extending 'AutoMigrationSpec',
            and annotate with the @RenameColumn or @RemoveColumn annotation to specify the
            change to be performed:
            1) RENAME:
                @RenameColumn(
                        tableName = "users",
                        fromColumnName = "eyeColor",
                        toColumnName = <NEW_COLUMN_NAME>
                )
            2) DELETE:
                @DeleteColumn=(
                        tableName = "users",
                        columnName = "eyeColor"
                )

Actual result:

• Build fails but the error message is empty:

[ksp] /Users/donturner/Code/workspace-android/RoomAutoMigrationIssue/app/src/main/java/com/google/samples/apps/roomautomigrationissue/MainActivity.kt:39:

Workaround: Run ./gradlew assembleDebug from a terminal, then the full error message is shown.