針對matlab出現以下問題

----------------------------------------------------------
    Your MATLAB license will expire in 34 days.
    Please contact your system administrator or
    MathWorks to renew this license.
----------------------------------------------------------

網上的fang方法都是修改如license_PC_161052_R2012a.lic這個檔案，我的MATLAB是2017a，試了這個方法，還是不行。

我將破解檔案license_R2017a.lic中的2018全部替換成2019後，過期提示訊息沒有了。

給出一小段license_R2017a.lic檔案中程式碼。

# MATLAB license passcode file for use with FLEXlm.
# LicenseNo: FreeForAll HostID: ANY
# Standalone license file
#
INCREMENT Aerospace_Blockset MLM 36 11-nov-2019 uncounted \
	1090C04009FDB19B8DE4 \
	VENDOR_STRING=vi=0:at=200:ae=1:lu=186:lo=CN:ei=123: \
	HOSTID=ANY asset_info=FreeForAll ISSUER="MathWorks" \
	ISSUED=22-feb-2013 ck=233 SN=FreeForAll TS_OK
INCREMENT Aerospace_Toolbox MLM 37 11-nov-2019 uncounted \
	9010C08032ECB4ED4CC2 \
	VENDOR_STRING=vi=0:at=200:ae=1:lu=186:lo=CN:ei=123: \
	HOSTID=ANY asset_info=FreeForAll ISSUER="MathWorks" \
	ISSUED=22-feb-2013 ck=218 SN=FreeForAll TS_OK