Android Studio - Error:Unable to load class 'org.slf4j.LoggerFactory'
问题 I'm new in the Android world. I opened studio Android 2.2 and, after creating a new project, I get this error message: Failed to sync Gradle project '...' Error:Unable to load class 'org.slf4j.LoggerFactory'. Possible causes for this unexpected error include: Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) Re-download dependencies and sync project (requires network) The state of a Gradle build process (daemon) may be corrupt. Stopping all