Keyboard shortcuts

Press or to navigate between chapters

Press S or / to search in the book

Press ? to show this help

Press Esc to hide this help

Error Conditions

Multiple App Files

Condition: More than one .app.src file in same directory

Error Format:

{multiple_app_files, Files}

Error Message:

Multiple app files found in one app dir: my_app.app.src and other.app.src

Recovery: Remove duplicate files


Invalid App File

Condition: Application resource file has syntax errors

Error Format:

{invalid_app_file, File, Reason}

Error Message:

Invalid app file apps/my_app/src/my_app.app.src at line 5: syntax error before: '}'

Recovery: Fix syntax in app file


Missing App File

Condition: Application directory has no valid resource file

Behavior: Application skipped, not an error

Log: Debug message only


OTP Version Mismatch

Condition: Application requires different OTP version

Error: Thrown from rebar_app_info:verify_otp_vsn/1

Configuration: Use minimum_otp_vsn in app's rebar.config