Android resource linking failed AAPT: unknown option '--proguard-minimal-keep-rules'

Question

My Android Studio was working fine, everything was good but after updating Android Studio to the latest version and updating gradle I got the following error

Could you please provide the solution, thank you

Task :app:processDebugResources FAILED AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{}],"original":"AAPT: unknown option '--proguard-minimal-keep-rules'.\n\naapt2 link [options] -o arg --manifest arg files...\n\nOptions:\n -o arg Output path.\n --manifest arg Path to the Android manifest to build.\n -I arg Adds an Android APK to link against.\n -A arg An assets directory to include in the APK. These are unprocessed.\n -R arg Compilation unit to link, using overlay semantics.\n The last conflicting resource given takes precedence.\n --package-id arg Specify the package ID to use for this app. Must be greater or equal to\n 0x7f and can't be used with --static-lib or --shared-lib.\n --java arg Directory in which to generate R.java.\n --proguard arg Output file for generated Proguard rules.\n --proguard-main-dex arg Output file for generated Proguard rules for the main dex.\n --proguard-conditional-keep-rules Generate conditional Proguard keep rules.\n --no-auto-version Disables automatic style and layout SDK versioning.\n --no-version-vectors Disables automatic versioning of vector drawables. Use this only\n when building with vector drawable support library.\n --no-version-transitions Disables automatic versioning of transition resources. Use this only\n when building with transition support library.\n --no-resource-deduping Disables automatic deduping of resources with\n identical values across compatible configurations.\n --enable-sparse-encoding This decreases APK size at the cost of resource retrieval performance.\n -x Legacy flag that specifies to use the package identifier 0x01.\n -z Require localization of strings marked 'suggested'.\n -c arg Comma separated list of configurations to include. The default\n is all configurations.\n --preferred-density arg Selects the closest matching density and strips out all others.\n --product arg Comma separated list of product names to keep\n --output-to-dir Outputs the APK contents to a directory specified by -o.\n --no-xml-namespaces Removes XML namespace prefix and URI information\n from AndroidManifest.xml and XML binaries in res/*.\n --min-sdk-version arg Default minimum SDK version to use for AndroidManifest.xml.\n --target-sdk-version arg Default target SDK version to use for AndroidManifest.xml.\n --version-code arg Version code (integer) to inject into the AndroidManifest.xml if none is\n present.\n --version-code-major arg Version code major (integer) to inject into the AndroidManifest.xml if none is\n present.\n --version-name arg Version name to inject into the AndroidManifest.xml if none is present.\n --replace-version If --version-code and/or --version-name are specified, these\n values will replace any value already in the manifest. By\n default, nothing is changed if the manifest already defines\n these attributes.\n --compile-sdk-version-code arg Version code (integer) to inject into the AndroidManifest.xml if none is\n present.\n --compile-sdk-version-name arg Version name to inject into the AndroidManifest.xml if none is present.\n --shared-lib Generates a shared Android runtime library.\n --static-lib Generate a static Android library.\n --proto-format Generates compiled resources in Protobuf format.\n Suitable as input to the bundle tool for generating an App Bundle.\n --no-static-lib-packages Merge all library resources under the app's package.\n --non-final-ids Generates R.java without the final modifier. This is implied when\n --static-lib is specified.\n --stable-ids arg File containing a list of name to ID mapping.\n --emit-ids arg Emit a file at the given path with a list of name to ID mappings,\n suitable for use with --stable-ids.\n --private-symbols arg Package name to use when generating R.java for private symbols.\n If not specified, public and private symbols will use the application's\n package name.\n --custom-package arg Custom Java package under which to generate R.java.\n --extra-packages arg Generate the same R.java but with different package names.\n --add-javadoc-annotation arg Adds a JavaDoc annotation to all generated Java classes.\n --output-text-symbols arg Generates a text file containing the resource symbols of the R class in\n the specified folder.\n --allow-reserved-package-id Allows the use of a reserved package ID. This should on be used for\n packages with a pre-O min-sdk\n \n --auto-add-overlay Allows the addition of new resources in overlays without\n tags.\n --rename-manifest-package arg Renames the package in AndroidManifest.xml.\n --rename-instrumentation-target-package arg Changes the name of the target package for instrumentation. Most useful\n when used in conjunction with --rename-manifest-package.\n -0 arg File extensions not to compress.\n --no-compress Do not compress any resources.\n --warn-manifest-validation Treat manifest validation errors as warnings.\n --split arg Split resources matching a set of configs out to a Split APK.\n Syntax: path/to/output.apk:[,[...]].\n On Windows, use a semicolon ';' separator instead.\n -v Enables verbose logging.\n --debug-mode Inserts android:debuggable=\"true\" in to the application node of the\n manifest, making the application debuggable even on production devices.\n --strict-visibility Do not allow overlays with different visibility levels.\n -h Displays this help menu\n\n ","tool":"AAPT"} AAPT: unknown option '--proguard-minimal-keep-rules'.

aapt2 link [options] -o arg --manifest arg files...

Options: -o arg Output path. --manifest arg Path to the Android manifest to build. -I arg Adds an Android APK to link against. -A arg An assets directory to include in the APK. These are unprocessed. -R arg Compilation unit to link, using overlay semantics. The last conflicting resource given takes precedence. --package-id arg Specify the package ID to use for this app. Must be greater or equal to 0x7f and can't be used with --static-lib or --shared-lib. --java arg Directory in which to generate R.java. --proguard arg Output file for generated Proguard rules. --proguard-main-dex arg Output file for generated Proguard rules for the main dex. --proguard-conditional-keep-rules Generate conditional Proguard keep rules. --no-auto-version Disables automatic style and layout SDK versioning. --no-version-vectors Disables automatic versioning of vector drawables. Use this only when building with vector drawable support library. --no-version-transitions Disables automatic versioning of transition resources. Use this only when building with transition support library. --no-resource-deduping Disables automatic deduping of resources with identical values across compatible configurations. --enable-sparse-encoding This decreases APK size at the cost of resource retrieval performance. -x Legacy flag that specifies to use the package identifier 0x01. -z Require localization of strings marked 'suggested'. -c arg Comma separated list of configurations to include. The default is all configurations. --preferred-density arg Selects the closest matching density and strips out all others. --product arg Comma separated list of product names to keep --output-to-dir Outputs the APK contents to a directory specified by -o. --no-xml-namespaces Removes XML namespace prefix and URI information from AndroidManifest.xml and XML binaries in res/*. --min-sdk-version arg Default minimum SDK version to use for AndroidManifest.xml. --target-sdk-version arg Default target SDK version to use for AndroidManifest.xml. --version-code arg Version code (integer) to inject into the AndroidManifest.xml if none is present. --version-code-major arg Version code major (integer) to inject into the AndroidManifest.xml if none is present. --version-name arg Version name to inject into the AndroidManifest.xml if none is present. --replace-version If --version-code and/or --version-name are specified, these values will replace any value already in the manifest. By default, nothing is changed if the manifest already defines these attributes. --compile-sdk-version-code arg Version code (integer) to inject into the AndroidManifest.xml if none is present. --compile-sdk-version-name arg Version name to inject into the AndroidManifest.xml if none is present. --shared-lib Generates a shared Android runtime library. --static-lib Generate a static Android library. --proto-format Generates compiled resources in Protobuf format. Suitable as input to the bundle tool for generating an App Bundle. --no-static-lib-packages Merge all library resources under the app's package. --non-final-ids Generates R.java without the final modifier. This is implied when --static-lib is specified. --stable-ids arg File containing a list of name to ID mapping. --emit-ids arg Emit a file at the given path with a list of name to ID mappings, suitable for use with --stable-ids. --private-symbols arg Package name to use when generating R.java for private symbols. If not specified, public and private symbols will use the application's package name. --custom-package arg Custom Java package under which to generate R.java. --extra-packages arg Generate the same R.java but with different package names. --add-javadoc-annotation arg Adds a JavaDoc annotation to all generated Java classes. --output-text-symbols arg Generates a text file containing the resource symbols of the R class in the specified folder. --allow-reserved-package-id Allows the use of a reserved package ID. This should on be used for packages with a pre-O min-sdk

--auto-add-overlay Allows the addition of new resources in overlays without tags. --rename-manifest-package arg Renames the package in AndroidManifest.xml. --rename-instrumentation-target-package arg Changes the name of the target package for instrumentation. Most useful when used in conjunction with --rename-manifest-package. -0 arg File extensions not to compress. --no-compress Do not compress any resources. --warn-manifest-validation Treat manifest validation errors as warnings. --split arg Split resources matching a set of configs out to a Split APK. Syntax: path/to/output.apk:[,[...]]. On Windows, use a semicolon ';' separator instead. -v Enables verbose logging. --debug-mode Inserts android:debuggable="true" in to the application node of the manifest, making the application debuggable even on production devices. --strict-visibility Do not allow overlays with different visibility levels. -h Displays this help menu

Answer 1

I had the same problem after updating AS and grade plugin, the problem is with Gradle version 6.1.1 try downgrading to the latest stable one from the project structure till the release of another Gradle version. Go to - file -> project structure