database structure needs to be synchronized with the project

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After opening the project with the new mendix version2.5.1 and starting the server, it shows me this error message database structure needs to be synchronized with the project and when i made view queries it shows:" ALTER TABLE "SYSTEM$ACTIONLOCK_USER" DROP CONSTRAINT "PK_1096849292" CASCADE; DROP INDEX IDX_1096849292_1429761477; DROP INDEX IDX_1096849292_259399279; ALTER TABLE "SYSTEM$ACTIONLOCK_USER" RENAME TO "DEL_SYSTEM$ACTIONLOCK_USER"; ALTER TABLE "SYSTEM$ACTIONLOCK_XASINSTANCE" DROP CONSTRAINT "PK_1549645738" CASCADE; DROP INDEX IDX_1549645738_259399279; DROP INDEX IDX_1549645738_315183931; ALTER TABLE "SYSTEM$ACTIONLOCK_XASINSTANCE" RENAME TO "DEL_SYSTEM$ACTIONLOC_XASINSTAN"; ALTER TABLE "SYSTEM$ACTIONLOCK" DROP CONSTRAINT "PK_420381194" CASCADE; DROP INDEX IDX_420381194_1195390942; DROP INDEX IDX_420381194_273564086; DROP SEQUENCE "ACTIONLOCK_420381194_MXSEQ"; ALTER TABLE "SYSTEM$ACTIONLOCK" RENAME TO "DEL_SYSTEM$ACTIONLOCK"; "
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3 answers
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These are probably changes to the System module that came with the new version. The database needs to be updated for this.

Note: It is recommended to back up your model and database before upgrading to a new version.

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1

The problem with the disappearing buttons because of a different DPI setting will be fixed in version 2.5.2.

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0

After each migration you have to synchonize, so what's your question?

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