B4A project lamecode encode fail for api 29

Hi, I am using b4a to develop andoid app. the code below is ok with API22, but fail with API29 [login to view URL], [login to view URL] that I am using now is version1.01 Sub WavToMP3(sWavFile As String) Try Dim sMP3File As String sMP3File=[login to view URL](".wav", ".mp3") If [login to view URL]([login to view URL](folder, "[login to view URL]"), [login to view URL](folder, sMP3File)) Then [login to view URL] Else Log("An error occurred while calling [login to view URL]") End If Catch Msgbox("WavToMP3", "err") End Try End Sub Thanks for the support in advance All the best, Albert Lim