Why did the Mexicans government allow immigrated to Texas?

The Mexican government did not allow immigration to Texas; in fact, they tried to stop it. Mexico made laws against it and tried to stop immigrants from the United States coming into Texas. However, due to Mexico's economic problems and political turmoil due to its struggle for independence between 1810 and 1824 , and again between 1824 and 1835, its laws and attempts were not very effective until after they become a US colony.